Name:    Quiz 6-4: Slope-Intercept Form

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

Graph the pair of equations. Describe any similarities or differences and explain why they are a family of graphs.
,
 a. different slope, different c. same slope, same b. different slope, same d. same slope, different

2.

Determine the slope and y-intercept of the graph of the equation Then graph the equation.
 a. slope = ; y- intercept = c. slope = ; y- intercept = b. slope = ; y- intercept = d. slope = ; y- intercept =

3.

Find the slope-intercept form of the equation of the line that passes through the point and has .
 a. c. b. d.

4.

Find an equation of the line with slope 9 and y -intercept 3.
 a. c. b. d.

5.

Find an equation of the line containing (2, -5) and (6, 3)
 a. y = x - 6 c. y = 2x + 12 b. y = x d. y = 2x - 9

6.

What is the equation of the line whose graph passes through the origin and has a slope of ?
 a. y = 4x c. y = x + b. y = x d. y + = x

7.

What is the slope of the graph of 4x + 5y = 10?
 a. - c. 4 b. 2 d. -4

8.

Which line is the graph of the equation y = -3x + 1?
 a. p c. r b. q d. s

9.

To calculate the charge for a load of bricks, including delivery, the Redstone Brick Co. uses the equation c = 0.42b + 25, where c is the charge and b is the number of bricks. What is the delivery charge per load?
 a. \$42 c. \$25 b. \$67 d. \$17

10.

Graph the pair of equations. Describe any similarities or differences and explain why they are a family of graphs. ,

11.

Determine the slope and y-intercept of the graph of the equation . Then graph the equation.

12.

Write the slope-intercept form of the equation of the line that has slope –4 and passes through the point .

13.

Write the slope-intercept form of an equation of the line with and y-intercept .