Alg1 Unit 1 Review

If f(x) = 3x - 8, what is f(-2)?

• y = -2x + 7

• y = 2x + 1

The amount of gas consumed by a car varies directly with the miles driven. A car traveled 180 miles and used 6 gallons of gas. If the car traveled 1,260 miles, how many gallons of gas would be used? 

• 7 gal

• 30 gal

• 42 gal

• 210 gal

What is f(9)?

What is the slope of this line?

• 3/4

• 4/3

• -4/3

• -3/4

The total cost of renting a banquet hall is a function of the number of hours the hall is rented. The owner of the banquet hall charges $135 per half hour up to a maximum of 9 hours plus a $50 cleaning fee. What is the greatest value in the range for this situation?

• ∞

• $585

• $2,480

• $1,265

What is the domain and range of this graph?

Domain: ​​ (a)  
Range: ​ ​ ​ (b)  

• -4 ≤ y < 1
• -3 ≤ x < 2
• -4 < y ≤ 1
• -3 < x ≤ 2
• -4 ≤ x < 1
• -3 ≤ y < 2

A library has 8000 books, and is adding 500 more books each year. What is the rate of change?

A hiker is on a hike. After 2 hours, he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the rate of change in feet per hour?

• 75

• 137.5

• 1,200

• 650

At the start of a carnival, you have 50 ride tickets. Each time you ride the roller coaster, you have to pay 6 tickets. What is the rate of change?

• 6

• -6

• 50

• -50