Unit 3 & 4 Review

What is the domain of this relation?

• (–10,3), (3,2), (0,–8), (8,–4), (7,6)

• {0,3,7,8}

• {2,3,4,6,8}

• {-10,0,3,7,8}

• {-8,-4,2,3,6}

Keenan is a sprinter on his school's track team. During a race, his breathing rate increases until it is much higher than his resting breathing rate. His breathing rate remains elevated until the race is over. Once the race is finished, Keenan's breathing rate gradually returns to normal.

Which graph could show Keenan's breathing rate during and after a race?

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Haley is giving her puppy a bath. She fills up the bathtub, washes the puppy, and then empties the tub.

Which graph could show the amount of water in the bathtub over time?

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Devon is a trampoline gymnast. During one of her routines, she bounces high into the air and does a series of twists before landing on the trampoline.

Which graph could show Devon's height above the trampoline over time?

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Which of the following are functions?

Select all that apply.

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Which of the following are NOT functions?

Select all that apply.

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Select which graphs are functions.

Select all that apply.

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Select which graphs are NOT functions.

Select all that apply.

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If f(x) = 2x - 5, what is f(3)?

• 6

• 1

• -1

• 7

• -1

• 0

• 6

• 10