Math 1A Exam Review - Functions

Evaluate f(2):

f(x)=3x+1

• 7

• 9

• 11

• 13

If g(x)=2x+5, what is the value of g(4)?

Fill in the blank that will give the correct output!

If f(x) = 2x+1, then f(___)=13

Given that h(x)=x³-2, evaluate h(4)

• 62

• 10

• 64

• 12

What is the definition of the range of a function?

• The collection or set of all possible outputs

• The collection or set of all possible inputs

• It is definitely one of the other two choices...please don't select this choice

• 12

• 4.5

• 3

• 0

The initial weight of a container is 6.2 pounds. As water is added to the container, the weight increases at a rate of 0.6 pounds per minute. Which function models the weight of the container as a function of time?

• f(t)=0.6t+6.2
• f(t)=t+6.8
• f(t)=6.2-0.6t
•                                           f(t)=6.2t+0.6

What is the range of this function?

• (150, 275)
• [150, 275]
• [220, 265]
• (220, 265)

Which equation describes the graph?

• f(x)=-4x-2
• f(x)=-2x+4
• f(x)=4x-2
• f(x)=4x+2

A frozen yogurt store charges based on how many ounces of yogurt, y, a customer puts in their cup. They also charge a flat price for unlimited toppings. The function for the cost of a cup of yogurt with toppings is f(y)=0.37y+1.50. What does the function indicate?

• Each ounce of yogurt decreases the cost by $0.37.
• Each ounce of yogurt increases the cost by $0.37.
• Each ounce of yogurt decreases the cost by $1.50.
• Each ounce of yogurt increases the cost by $1.50.