Homework Explained - Math Practice 101

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Chapter 6: Functions; Mixed Review

Selected Response

• Question 1

Which table shows a proportional function?

• A
• B
• C
• D
• Question 2

What is the slope and y-intercept of the function shown in the table?

• m = -2; b = -4
• m = -2; b = 4
• m = 2; b = 4
• m = 4; b = 2
• Question 3

The table below shows some input and output values of a function.

What is the missing output value?

• 20
• 21
• 22
• 23
• Question 4

Tom walked to school at a steady pace, met his sister, and they walked home at a steady pace. Describe this graph.

• V-shaped
• upside down V-shaped
• Straight line sloping up
• Straight line sloping down

• Question 5

Linear functions can be used to find the price of a building based on its floor area.Below are two of these functions.

$$\text{y} = 40\text{x} + 15,000$$

a. Find and compare the slopes.

• Type below:
• Question 5

b. Find and compare the y-intercepts.

• Type below:
• Question 5

c. Describe each function as proportional or nonproportional.

• Type below:

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