Question 1

Solve the system of equations:  +  =   +  =

Accepted Answer

The answer of Solve the system of equations:  +...

Question 2

Graph: y = -

Accepted Answer

The answer of Graph: y = - ...

Question 3

Find the slope and y-intercept: 43 + 7y = 16x

Accepted Answer

The answer of Find the slope and y-intercept: 43 +...

Question 4

The difference between seven times the first number and three times the second number is 12. The sum of three-fourths of the first number and two-thirds of the second number is 21. Find the two numbers.

Accepted Answer

The answer of The difference between seven times the first...

Question 5

A machine requires 3 hours to make a unit of Product A, and 6 hours to make a unit of Product B. The machine operated for 195 hours producing a total of 40 units. How many hours were used to manufacture units of Product A?

Accepted Answer

The answer of A machine requires 3 hours to make...

Question 6

Solve graphically: 4y - 20 = 6x and x = 2

Accepted Answer

The answer of Solve graphically: 4y - 20 = 6x...

Question 7

Find the slope and y-intercept: 4x + 5y = 31

Accepted Answer

The answer of Find the slope and y-intercept: 4x +...

Question 8

Solve graphically: x - y = 4 and x + y = 6

Accepted Answer

The answer of Solve graphically: x - y = 4...

Question 9

Graph: 3x + 4y = 12

Accepted Answer

The answer of Graph: 3x + 4y = 12...

Question 10

Solve the system of equations: y - 8 =   2y - x = 8

Accepted Answer

A) 10,9 
B) 20,14 
C) 12,10 
D) -4,2 
E) Unique answer is not possible

Question 11

Graph: y = 3 - 2x

Accepted Answer

The answer of Graph: y = 3 - 2x...

Question 12

Find the slope and y-intercept: 1 -  y = 4x

Accepted Answer

The answer of Find the slope and y-intercept: 1 -...

Question 13

Graph: x + 4y = 8

Accepted Answer

The answer of Graph: x + 4y = 8...

Question 14

Graph: x = -4

Accepted Answer

The answer of Graph: x = -4...

Question 15

Calculate the x-intercept and y-intercept for the following equation: -x + 2y = 8

Accepted Answer

A) x-intercept does not exist; y-intercept = 4 
B) -2;  
C) -8; 8 
D) -8; 4 
E) 2;

Question 16

Graph: y = -6

Accepted Answer

The answer of Graph: y = -6...

Question 17

An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for every 20 minutes as labour cost. If one writes an equation to calculate total charges in terms of hours of labour, what will be the slope of the line?

Accepted Answer

A) 25 
B) 90 
C) 50 
D) 75 
E) 100

Question 18

Graph the region defined by x > 0, 6y + 12x < 30, and 6x - 2y > 10

Accepted Answer

The answer of Graph the region defined by x >...

Question 19

Solve for x and y: 7x + 3y = 42 4x + 6y = 36

Accepted Answer

A) x = -4.8, y = 2.8 
B) x = 4.8, y = 2.8 
C) x = -4.8, y = -2.8 
D) x = 4.8, y = -2.8 
E) x = 4.8, y = -5.6

Question 20

The Oak Store has been producing 4640 chairs a day working two shifts. The second shift has produced 120 chairs fewer than four-thirds of the number of chairs produced by the first shift. Determine the number of chairs each shift has produced.

Accepted Answer

The answer of The Oak Store has been producing 4640...

Exam 4: Linear Systems

Solve the system of equations: + = + =