Alg 1 S1 Additional Review

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

Is the relation {(4,5), (4,-7), (4,2), (4,0), (4,9)} a function?

Back

No, because the input 4 has multiple outputs.

Front

What is the cost equation for Joe's Car Rental Agency?

Back

The cost equation is C = 35 + 0.75x, where x is the number of miles driven.

Front

What is the cost equation for Cool Wheels Car Rental Agency?

Back

The cost equation is C = 25 + 1.50x, where x is the number of miles driven.

Front

How do you set up an equation to compare costs of two rental agencies?

Back

Set the cost equations equal to each other: 0.75x + 35 = 1.50x + 25.

Front

Back

Front

How do you subtract fractions with different denominators?

Back

Find a common denominator, convert the fractions, then subtract the numerators.

Front

Back

Front

How do you multiply fractions?

Back

Multiply the numerators together and the denominators together.

Front

What is the cost equation for Oceanside Bike Rental Shop?

Back

The cost equation is C = 12 + 9x, where x is the number of hours rented.