Unit 3 Practice Test

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Back

Front

If Heather takes 7 hours to pour a driveway and Alberto takes 8 hours, how long will it take them together?

Back

3.73 hours

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Back

x = -4

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Back

Front

What is the domain of the function if it is undefined at x = -3?

Back

D: All real numbers x ≠ -3

Front

What is the range of the function if it is undefined at y = 1?

Back

R: All real numbers y ≠ 1

Front

Define the term 'domain' in mathematics.

Back

The set of all possible input values (x-values) for a function.

Front

Define the term 'range' in mathematics.

Back

The set of all possible output values (y-values) for a function.

Front

What is the formula for finding the combined work rate of two people?

Back

Combined work rate = 1/(1/A + 1/B) where A and B are the individual times.

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Back