1. Write the equation of the line with a slope of- 8 and passing through the point (0, 0).

• A. y = - 8
• B. None of these.
• C. y = - 8x
• D. y = 0
• E. x = 0

2.(U8-Q66.gif)

• A. Choice A
• B. Choice B
• C. Choice C
• D. Choice D

3.Write the equation in slope-intercept form, of the line passing through (7, 8) that is perpendicular to the line y = - x + 11.

The perpendicular line is

4.The graph of a line has a slope of -7 and a y-intercept of (0, 0). Rewrite the equation in standard form (Ax + By = C) with a positive x-term. A, B, and C must all be integers - not decimals or fractions!

The equation in standard form is

5.Write the equation in slope-intercept form of the line passing through the points (4 , 12 ) and (- 1 , - 13 ).

The equation is y =

6.Determine which point is a solution to the inequality:

• A. (1, - 4)
• B. (-6, 0)
• C. (- 1, 3)
• D. None of these.
• E. (0, - 4)

7.True or False:

This relation is a function:

{(-2, 1), (3, -4), (4, 2), (8, -1), (11, 9)}

True

False

Question 8 of 25

Given the inequality: y < - 4x - 3, which quadrants would be partially shaded?

A. Quadrants I, III, and IV

B. Quadrants I, II, andIV

C. Quadrants II, III, and IV

D. Quadrants I, II, and III

Question 9 of 25

Write the equation of the line with a slope of0 andcontaining the point (- 6, 5).

A. x = 5

B. y = - 6

C. None of these.

D. y = 5

E. x = - 6

Question 10 of 25

Find f(x + 1) when f(x) = - 4x + 3

f(x + 1) =

Question 11 of 25

Find the range of the relation: {(6, 4), (-10, 0), (-2, -2), (12, -10)}

A. range = {-10, -2, 12}

B. range = {-10, -2, 4, 12}

C. range = {0, 4}

D. range = {-10, -2, 0, 4}

Question 12 of 25

If the graph of an inequality has a solid line, it means that ...

A. the solutions are below the line

B. the points on the line are NOT solutions

C. the solutions are above the line

D. the points on the line are solutions

Question 13 of 25

Find the equation of a line passing through the point (6, 8) and perpendicular to the line y = - 2.

A. None of these.

B. y = 8

C. x = 8

D. x = 6

E. y = 6

Question 14 of 25

Find f(-15) when f(x) = - 5x + 30

A. None of these.

B. 45

C. - 45

D. 105

E. - 105

Question 15 of 25

Write the equation of the line with slope =2 and containing the point (8, 7).

A. y = 2x - 9

B. None of these

C. y - 7 = x - 8

D. y - 7 = mx - 8

E. y = 2x + 9

Question 16 of 25

Write the equation of the line passing through the points (5, - 2) and (9, - 2).

A. y = 0

B. y = - 2

C. x = - 2

D. y = x - 2

Question 17 of 25

All-Hands Moving charges a flat fee of $30 plus $25 per hour.

Choose an equation for the cost in dollars, y, for using All-Hands for x hours.

A. y = 25x

B. y = 25x + 30

C. None of these.

D. y = 30x + 25

E. y = 30x

Question 18 of 25

Use your knowledge of the process of "Writing an equation given two points" to solve the following problem:

A vendor has learned that, by pricing his deep fried bananas on a stick at $1.00, sales will reach 100 per day.Raising the price to $2.00 will cause the sales to fall to 52 per day.Let y be the number of the vendor sells at x dollars each.Write the linear equation that models the number of sold per day when the price is x dollars each.

The linear equation is y =

Question 19 of 25

Determine the slope and the y-intercept for the equation y = 4x.

A. m = 4; y-intercept is (0, 0)

B. m = 0; y-intercept is (0, 4)

C. m = - 4; y-intercept is (0, 0)

D. m = 0; y-intercept is (0, - 4)

Question 20 of 25

Choose the equation of the line that has an undefined slope and contains the point (9, - 8).

A. x = - 8

B. y = 9

C. x = 9

D. y = - 8

Question 21 of 25

The formula for converting Celsius temperature to Fahrenheit is:

F = 1.8C + 32

Find the Fahrenheit temperature when the Celsius temperature is6 degrees.

A. 21.4

B. None of these.

C. -21.2

D. -14.2

E. 42.8

Question 22 of 25

The linear model C = 800x + 20,000 represents the cost, in dollars, for a company to manufacture x items during a month. Based on this, how much does it cost to produce 800 items?

A. $25.00

B. $0.03

C. $640,000

D. $660,000

Question 23 of 25

A truck rental company rents a moving truck one day by charging $39plus $.09 per mile. What is the cost of renting the truck if the truck is driven 160 miles? Remember, when writing answers that involve money, it is customary to use 2 decimal places!

The cost to drive the truck 160 miles is $

Question 24 of 25

The sales of a certain brand of TV satisfy the linear model y = 110x + 5600 where y represents the number of sales in year x, with x = 0 corresponding to 1982, x = 1 corresponding to 1983, etc. How many units did they sell in 1987?

The number of sales in 1987 was

Question 25 of 25

The cost X, in dollars, to produce graphing calculators is given by the function C(x) = 51x + 2000, where x is the number of calculators produced. How many calculators can be produced for $139,700?

The number of calculators that can be produced is