Question 1

Use linear regression to determine the line of best fit for this data.x

Accepted Answer

y = 2.2x + 5.8

Question 2

Solve the polynomial inequality and express the solution set in interval notation.

Accepted Answer

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

Question 3

Use algebraic tests to determine whether the graph of the equation y = 6x10 + 4x5 is symmetric with respect to the x-axis, y-axis, or origin.

Accepted Answer

A)  x-axis 
B)  y-axis 
C)  origin 
D)  no symmetry 
A)  x-axis 
B)  y-axis 
C)  origin 
D)  no symmetry D

Question 4

Find the solution set of the radical equation.

Accepted Answer

A)  {10} 
B)  {10 , -10} 
C)  {0} 
D)  {4.8} 
A)  {10} 
B)  {10 , -10} 
C)  {0} 
D)  {4.8}

Question 5

Solve by factoring.

Accepted Answer

A)  {-4/5,-3} 
B)  {5/4,3} 
C)  {4/5,3} 
D)  {-5/4,-3} 
A)  {-4/5,-3} 
B)  {5/4,3} 
C)  {4/5,3} 
D)  {-5/4,-3}

Question 6

Find the solution set of the radical equation.

Accepted Answer

A)  {10/3} 
B)    
C)  {16/3} 
D)  {2/3} 
A)  {10/3} 
B)    
C)  {16/3} 
D)  {2/3}

Question 7

Find the solution set of the equation.
|y| = 18

Accepted Answer

A)  {18, -18} 
B)  {18} 
C)  {-18} 
D)    
A)  {18, -18} 
B)  {18} 
C)  {-18} 
D)

Question 8

Solve by factoring.
X2 + 3x = 10

Accepted Answer

A)  {-2,5} 
B)  {2,-5} 
C)  {-2,-5} 
D)  {2,5} 
A)  {-2,5} 
B)  {2,-5} 
C)  {-2,-5} 
D)  {2,5}

Question 9

Find the slope of the line whose equation is given by x = -8.

Accepted Answer

A)  -8 
B)  8 
C)  undefined 
D)  0 
A)  -8 
B)  8 
C)  undefined 
D)  0

Question 10

For the graph, identify (by inspection) (a) the x- and y-intercepts and (b) classify the line as increasing, decreasing, horizontal, or vertical.

Accepted Answer

(a) x-intercept : no

Question 11

Find the center and radius of the circle with equation (x - 4)2 + (y + 17)2 = 25.

Accepted Answer

A)  center = (4, -17), r = 25 
B)  center = (4, -17), r = 5 
C)  center = (-4, 17), r = 5 
D)  center = (-4, 17), r = 25 
A)  center = (4, -17), r = 25 
B)  center = (4, -17), r = 5 
C)  center = (-4, 17), r = 5 
D)  center = (-4, 17), r = 25

Question 12

Solve for the indicated variable.
31 - [2 + 8x - 11(x + 1)] = 8(1x + 7) - [4(7x - 1) + 7 - 25x]

Accepted Answer

The answer of Solve for the indicated variable.
31 - [2...

Question 13

Find the solution set of the equation.
|3)9 - 3.7y| = 5.4

Accepted Answer

A)  {-0.41} 
B)  {2.51, 0.41} 
C)  {-2.51, 0.41} 
D)  {-0.41, 2.51} 
A)  {-0.41} 
B)  {2.51, 0.41} 
C)  {-2.51, 0.41} 
D)  {-0.41, 2.51}

Question 14

Write an equation that describes the variation. Use k as the constant of variation.
Y varies inversely proportional to both z and b 4

Accepted Answer

A)    
B)    
C)  y = k z b 4 
D)    
A)    
B)    
C)  y = k z b 4 
D)

Question 15

Solve and express the solution set in interval notation.
10 < 25 - 5x < 15

Accepted Answer

A)  [2, 3] 
B)  (2, 3) 
C)  (3, 2) 
D)  (-3, -2) 
A)  [2, 3] 
B)  (2, 3) 
C)  (3, 2) 
D)  (-3, -2)

Question 16

Lee can mow a lawn in 30 minutes. It takes Ito 50 minutes to mow a lawn of the same size. How long would it take them to mow the lawn if they work together?

Accepted Answer

A)  40.0 minutes 
B)  20 minutes 
C)  18.7 minutes 
D)  80 minutes 
A)  40.0 minutes 
B)  20 minutes 
C)  18.7 minutes 
D)  80 minutes

Question 17

Rewrite in interval notation.

Accepted Answer

A)  (-7, 15) 
B)  (-7, 15] 
C)  [-7, 15) 
D)  [-7, 15] 
A)  (-7, 15) 
B)  (-7, 15] 
C)  [-7, 15) 
D)  [-7, 15]

Question 18

Find the x- and y-intercept of the line whose equation is given by y + 5 = -20.

Accepted Answer

A)  no x-intercept, y-intercept: (0, -25) 
B)  no x-intercept, y-intercept: (0, 5) 
C)  no x-intercept, y-intercept: (0, -20) 
D)  x-intercept: (0,0), y-intercept: (0, -25) 
A)  no x-intercept, y-intercept: (0, -25) 
B)  no x-intercept, y-intercept: (0, 5) 
C)  no x-intercept, y-intercept: (0, -20) 
D)  x-intercept: (0,0), y-intercept: (0, -25)

Question 19

Solve using the square root method.
(x + 15)2 = 10

Accepted Answer

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

Question 20

Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation.

Accepted Answer

A)  {-5/6} 
B)    
C)  {10} 
D)    
A)  {-5/6} 
B)    
C)  {10} 
D)

Use linear regression to determine the line of best fit for this data.x

Solve the polynomial inequality and express the solution set in interval notation.

Use algebraic tests to determine whether the graph of the equation y = 6x¹⁰ + 4x⁵ is symmetric with respect to the x-axis, y-axis, or origin.

Find the solution set of the radical equation.

Solve by factoring.

Find the solution set of the radical equation.

Find the solution set of the equation. |y| = 18

Solve by factoring. X² + 3x = 10

Find the slope of the line whose equation is given by x = -8.

For the graph, identify (by inspection) (a) the x- and y-intercepts and (b) classify the line as increasing, decreasing, horizontal, or vertical.

Find the center and radius of the circle with equation (x - 4)² + (y + 17)² = 25.

Solve for the indicated variable. 31 - [2 + 8x - 11(x + 1)] = 8(1x + 7) - [4(7x - 1) + 7 - 25x]

Find the solution set of the equation. |3)9 - 3.7y| = 5.4

Write an equation that describes the variation. Use k as the constant of variation. Y varies inversely proportional to both z and b ⁴

Solve and express the solution set in interval notation. 10 < 25 - 5x < 15

Lee can mow a lawn in 30 minutes. It takes Ito 50 minutes to mow a lawn of the same size. How long would it take them to mow the lawn if they work together?

Rewrite in interval notation.

Find the x- and y-intercept of the line whose equation is given by y + 5 = -20.

Solve using the square root method. (x + 15)² = 10

Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation. $Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation.$

Functions and Their Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Trigonometric Functions of Angles

Trigonometric Functions of Real Numbers

Analytic Trigonometry

Vectors, the Complex Plane, and Polar Coordinates

Systems of Linear Equations and Inequalities

Conics, Systems of Nonlinear Equations and Inequalities, and Parametric Equations

Sequences and Series

Limits: A Preview to Calculus

Filters

Exam 12: Review: Equations and Inequalities

Use linear regression to determine the line of best fit for this data.x

Solve the polynomial inequality and express the solution set in interval notation.

Use algebraic tests to determine whether the graph of the equation y = 6x10 + 4x5 is symmetric with respect to the x-axis, y-axis, or origin.

Find the solution set of the radical equation.

Solve by factoring.

Find the solution set of the radical equation.

Find the solution set of the equation. |y| = 18

Solve by factoring. X2 + 3x = 10

Find the slope of the line whose equation is given by x = -8.

For the graph, identify (by inspection) (a) the x- and y-intercepts and (b) classify the line as increasing, decreasing, horizontal, or vertical.

Find the center and radius of the circle with equation (x - 4)2 + (y + 17)2 = 25.

Solve for the indicated variable. 31 - [2 + 8x - 11(x + 1)] = 8(1x + 7) - [4(7x - 1) + 7 - 25x]

Find the solution set of the equation. |3)9 - 3.7y| = 5.4

Write an equation that describes the variation. Use k as the constant of variation. Y varies inversely proportional to both z and b 4

Solve and express the solution set in interval notation. 10 < 25 - 5x < 15

Lee can mow a lawn in 30 minutes. It takes Ito 50 minutes to mow a lawn of the same size. How long would it take them to mow the lawn if they work together?

Rewrite in interval notation.

Find the x- and y-intercept of the line whose equation is given by y + 5 = -20.

Solve using the square root method. (x + 15)2 = 10

Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation.

Functions and Their Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Trigonometric Functions of Angles

Trigonometric Functions of Real Numbers

Analytic Trigonometry

Vectors, the Complex Plane, and Polar Coordinates

Systems of Linear Equations and Inequalities

Conics, Systems of Nonlinear Equations and Inequalities, and Parametric Equations

Sequences and Series

Limits: A Preview to Calculus

Filters

Use algebraic tests to determine whether the graph of the equation y = 6x¹⁰ + 4x⁵ is symmetric with respect to the x-axis, y-axis, or origin.

Solve by factoring. X² + 3x = 10

Find the center and radius of the circle with equation (x - 4)² + (y + 17)² = 25.

Write an equation that describes the variation. Use k as the constant of variation. Y varies inversely proportional to both z and b ⁴

Solve using the square root method. (x + 15)² = 10

Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation. $Clear the fractions by first multiplying by the least common denominator, and then find the solution set of the equation.$