Question 1

Solve the equation.
-13(8c - 2) = 4c - 2

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 2

Solve the equation.
-2(x + 2) = 2 - 4(x + 2)

Accepted Answer

A)    
B)  {10} 
C)    
D)    
A)    
B)  {10} 
C)    
D)

Question 3

Find the slope of the line described.
-A line parallel to the line y = 17.

Accepted Answer

A)  -17 
B)  0 
C)  undefined 
D)    
A)  -17 
B)  0 
C)  undefined 
D)

Question 4

Solve the problem.
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. By using linear regression, the following
Function is obtained: y = 88.6 - 1.86x where x is the number of hours spent in the lab and y is grade on the test.
Use this function to predict the grade of a student who spends 13 hours in the lab.

Accepted Answer

A)  67.0 
B)  60.4 
C)  64.4 
D)  75.6 
A)  67.0 
B)  60.4 
C)  64.4 
D)  75.6

Question 5

Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation.
-

Accepted Answer

A)    
B)  Identity, {all real numbers} 
C)  Conditional, {5} 
D)  Conditional, {-5} 
A)    
B)  Identity, {all real numbers} 
C)  Conditional, {5} 
D)  Conditional, {-5}

Question 6

Use the appropriate formula to solve the problem.
-Levi borrowed $3859 at 14% simple interest for 4 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 4 months? Round answers to the nearest cent if
Necessary.

Accepted Answer

A)  $135.07; $3994.07 
B)  $180.09; $4039.09 
C)  $225.11; $4084.11 
D)  $181.60; $4040.60 
A)  $135.07; $3994.07 
B)  $180.09; $4039.09 
C)  $225.11; $4084.11 
D)  $181.60; $4040.60

Question 7

Change the equation to slope-intercept form and identify the slope and y-intercept.
-2x - 7y = 1

Accepted Answer

A)  y = 2x - 1, 2, 0, - 1 
B)    
C)    
D)    
A)  y = 2x - 1, 2, 0, - 1 
B)    
C)    
D)

Question 8

Perform the indicated operations and write the answer in the form a + bi, where a and b are real numbers.
-7i(6 - 7i)

Accepted Answer

A)  49 + 42i 
B)    
C)  42i - 49 
D)    
A)  49 + 42i 
B)    
C)  42i - 49 
D)

Question 9

Solve the problem using your calculator.
-A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Use linear regression to find a linear function
That predicts a student's course grade as a function of the number of hours spent in lab.

Accepted Answer

A)  y = 88.6 - 1.86x 
B)  y = 1.86 + 88.6x 
C)  y = 44.3 + 0.930x 
D)  y = 0.930 + 44.3x 
A)  y = 88.6 - 1.86x 
B)  y = 1.86 + 88.6x 
C)  y = 44.3 + 0.930x 
D)  y = 0.930 + 44.3x

Question 10

Solve the absolute value equation.
-

Accepted Answer

A)  {5} 
B)    
C)    
D)  {-5} 
A)  {5} 
B)    
C)    
D)  {-5}

Question 11

Write the solution set in interval notation.
-x < -27

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Find the distance between the points, and find the midpoint of the line segment joining them.
-(8a, 9) and (9a, 6)

Accepted Answer

A)  a + 3; (17a, 15) 
B)    
C)  a + 3; (a, 3) 
D)    
A)  a + 3; (17a, 15) 
B)    
C)  a + 3; (a, 3) 
D)

Question 13

Solve the absolute value inequality. Write the solution set using interval notation.
-5

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

Solve the problem.
-Company A rents copiers for a monthly charge of $160 plus 8 cents per copy. Company B rents copiers for a monthly charge of $320 plus 4 cents per copy. What is the number of copies above which Company A's charges
Are the higher of the two?

Accepted Answer

A)  8000 copies 
B)  2000 copies 
C)  4000 copies 
D)  4100 copies 
A)  8000 copies 
B)  2000 copies 
C)  4000 copies 
D)  4100 copies

Question 15

Solve the problem.
-Decide whether or not the points are the vertices of a right triangle. (-9, -1), (-4, -1), (-4, 7)

Accepted Answer

A)  No 
B)  Yes 
A)  No 
B)  Yes

Question 16

Solve the problem.
-Sarah and Shakina are running in a 4-lap, 1 mile race. Shakina is exactly one lap behind at the moment when Sarah completes her second lap. If Sarah averages 0.19 miles per minute for her last two laps, what must
Shakina's average speed be in order for her to just pull even with Sarah at the finish line?

Accepted Answer

A)  0.13 mi/min 
B)  0.38 mi/min 
C)  0.25 mi/min 
D)  0.29 mi/min 
A)  0.13 mi/min 
B)  0.38 mi/min 
C)  0.25 mi/min 
D)  0.29 mi/min

Question 17

Solve the formula for the specified variable.
-a + b = s + r for s

Accepted Answer

A)    
B)    
C)  s = r(a + b) 
D)  s = a + b - r 
A)    
B)    
C)  s = r(a + b) 
D)  s = a + b - r

Question 18

Find the values of x for which the expression is a real number.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

Solve the problem.
-Decide whether or not the points are the vertices of a parallelogram. (-12, -10), (-10, 0), (3, 7), (1, -3)

Accepted Answer

A)  Yes 
B)  No 
A)  Yes 
B)  No

Question 20

Solve the problem.
-Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 6%. He made a total of $720 in interest. How much was invested at 6%?

Accepted Answer

A)  $6000 
B)  $4500 
C)  $7000 
D)  $3000 
A)  $6000 
B)  $4500 
C)  $7000 
D)  $3000

Solve the equation. -13(8c - 2) = 4c - 2

Solve the equation. -2(x + 2) = 2 - 4(x + 2)

Find the slope of the line described. -A line parallel to the line y = 17.

Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation. -

Use the appropriate formula to solve the problem. -Levi borrowed $3859 at 14% simple interest for 4 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 4 months? Round answers to the nearest cent if Necessary.

Change the equation to slope-intercept form and identify the slope and y-intercept. -2x - 7y = 1

Perform the indicated operations and write the answer in the form a + bi, where a and b are real numbers. -7i(6 - 7i)

Solve the absolute value equation. -

Write the solution set in interval notation. -x < -27

Find the distance between the points, and find the midpoint of the line segment joining them. -(8a, 9) and (9a, 6)

Solve the absolute value inequality. Write the solution set using interval notation. -5

Solve the problem. -Company A rents copiers for a monthly charge of $160 plus 8 cents per copy. Company B rents copiers for a monthly charge of $320 plus 4 cents per copy. What is the number of copies above which Company A's charges Are the higher of the two?

Solve the problem. -Decide whether or not the points are the vertices of a right triangle. (-9, -1), (-4, -1), (-4, 7)

Solve the formula for the specified variable. -a + b = s + r for s

Find the values of x for which the expression is a real number. -

Solve the problem. -Decide whether or not the points are the vertices of a parallelogram. (-12, -10), (-10, 0), (3, 7), (1, -3)

Solve the problem. -Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 6%. He made a total of $720 in interest. How much was invested at 6%?

Functions and Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

The Trigonometric Functions

Trigonometric Identities and Conditional Equations

Applications of Trigonometry

Systems of Equations and Inequalities

Matrices and Determinants

The Conic Sections

Sequences, Series, and Probability

Basic Algebra Review

Filters

Exam 1: Equations, Inequalities, and Modeling

Solve the equation. -13(8c - 2) = 4c - 2

Solve the equation. -2(x + 2) = 2 - 4(x + 2)

Find the slope of the line described. -A line parallel to the line y = 17.

Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation. -

Use the appropriate formula to solve the problem. -Levi borrowed $3859 at 14% simple interest for 4 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 4 months? Round answers to the nearest cent if Necessary.

Change the equation to slope-intercept form and identify the slope and y-intercept. -2x - 7y = 1

Perform the indicated operations and write the answer in the form a + bi, where a and b are real numbers. -7i(6 - 7i)

Solve the absolute value equation. -

Write the solution set in interval notation. -x < -27

Find the distance between the points, and find the midpoint of the line segment joining them. -(8a, 9) and (9a, 6)

Solve the absolute value inequality. Write the solution set using interval notation. -5

Solve the problem. -Company A rents copiers for a monthly charge of $160 plus 8 cents per copy. Company B rents copiers for a monthly charge of $320 plus 4 cents per copy. What is the number of copies above which Company A's charges Are the higher of the two?

Solve the problem. -Decide whether or not the points are the vertices of a right triangle. (-9, -1), (-4, -1), (-4, 7)

Solve the formula for the specified variable. -a + b = s + r for s

Find the values of x for which the expression is a real number. -

Solve the problem. -Decide whether or not the points are the vertices of a parallelogram. (-12, -10), (-10, 0), (3, 7), (1, -3)

Solve the problem. -Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 6%. He made a total of $720 in interest. How much was invested at 6%?

Functions and Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

The Trigonometric Functions

Trigonometric Identities and Conditional Equations

Applications of Trigonometry

Systems of Equations and Inequalities

Matrices and Determinants

The Conic Sections

Sequences, Series, and Probability

Basic Algebra Review

Filters