Bluebook SAT Test Linear Functions 7

Question 1

The cost of renting a bicycle is $5 per hour plus an additional one-time $8 fee. Which inequality represents the number of hours h for which the total cost is at most $33?

Accepted Answer

5h + 8 ≤ 33

Answer

5h − 8 ≤ 33

Answer

8h + 5 ≤ 33

Answer

5h + 8 ≥ 33

Question 2

What is the y-intercept of the line defined by the equation 2y − 6x = 10?

Accepted Answer

5

Answer

3

Answer

10

Answer

−5

Question 3

A baker makes 12 loaves of bread per hour. She already has 8 loaves ready when the bakery opens. Which function gives the total number of loaves L(t) available after t hours of baking?

Accepted Answer

L(t) = 12t + 8

Answer

L(t) = 8t + 12

Answer

L(t) = 12t − 8

Answer

L(t) = 8t − 12

Question 4

A line passes through (a, 3) and (7, 9), and has a slope of 2. What is the value of a?

Accepted Answer

4

Answer

2

Answer

3

Answer

5

Question 5

Which of the following is the graph of a function with a negative slope and a positive y-intercept?

Accepted Answer

A line falling from left to right crossing the positive y-axis

Answer

A line rising from left to right crossing the positive y-axis

Answer

A line rising from left to right crossing the negative y-axis

Answer

A line falling from left to right crossing the negative y-axis

Question 6

If the linear function f(x) = (3/4)x − 2, what is f(8)?

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 7

The linear function W(d) = −1.5d + 30 models the amount of dog food (in cups) remaining in a bag after d days. On what day will the bag be empty?

Accepted Answer

20th day

Answer

15th day

Answer

18th day

Answer

25th day