Bluebook SAT Test Linear Functions 6

Question 1

A company's weekly profit P (in dollars) is modeled by P(u) = 45u − 360, where u is the number of units sold. How many units must be sold for the company to break even (P = 0)?

Accepted Answer

8

Answer

4

Answer

6

Answer

10

Question 2

If f(x) = −5x + 2 and g(x) = 3x − 6, for what value of x does f(x) = g(x)?

Accepted Answer

1

Answer

−1

Answer

0

Answer

2

Question 3

The linear model T = 0.9F − 17.8 converts a temperature in degrees Fahrenheit (F) to a temperature in Celsius (T). Approximately what Fahrenheit temperature corresponds to 0°C?

Accepted Answer

20°F

Answer

0°F

Answer

18°F

Answer

32°F

Question 4

Point A is at (0, 3) and point B is at (6, 0). What is the length of segment AB?

Accepted Answer

3√5

Answer

3√3

Answer

6

Answer

9

Question 5

A linear function f has the following values: f(1) = 4 and f(4) = 13. What is the slope of f?

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 6

Which equation represents a line that passes through (2, −3) with slope 1/2?

Accepted Answer

y = (1/2)x − 4

Answer

y = (1/2)x + 2

Answer

y = 2x − 3

Answer

y = (1/2)x − 1

Question 7

For the linear function shown in the table, what is the missing value?

x:  1   2   3   4
f:  6   9  12   ?

Accepted Answer

15

Answer

13

Answer

14

Answer

16