2/24 - Unit 4 Quiz

Which of the following is the slope of the line y = -4x - 12

• -12

• -4

• 4

• 12

Which of the following is the y-intercept of the line

y = 2x + 4?

• -4

• -2

• 2

• 4

Which of the following points lies on the graph of the line

y = 5x - 2?

• (0,4)

• (2,8)

• (-1,2)

• (4,10)

A cell phone company charges a flat monthly fee of $15.25 and an additional $0.07 per hour spent talking on the phone. Which of the following functions gives the cost,c as a function of the number of hours, h spent talking?

• c = 0.07h + 15.25

• c = 15.25h + 0.07

• c = 0.07(h + 15.25)

• c = 15.25(h + 0.07)

Which of the following is the slope of a line that passes through the points (-3, 5) and (1,15)

• 5

• -3

• 7/3

• 5/2

What is the equation of a vertical line that passes through the point (-3, 4)?

• y = 4

• y = -3

• x = -3

• x = 4

What is the equation of a horizontal line that passes through the point (6, 2)

• y = 2

• y = 6

• x = 6

• x = 2

Which point is a solution to the system of equations shown below?

y = 4x - 5

y = -2x + 7

• (3, 7)

• (0, 1)

• (1, 5)

• (2, 3)

Which of the following is a solution to the inequality

 $y\ge-\frac{1}{3}x\ +\ 5$  

• (1, 10)

• (-1, 3)

• (2, 16)

• (4, 20)

Solve for y.

-4x + 2y = 14

• y = -2x + 7

• y = 2x + 14

• y = 4x + 14

• y = 2x + 7