Algebra Concept Review

What is the x and y intercepts for the linear function shown on the graph?

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 0.20x + 15

• C =15 (0.20x)

• C = 15 + x + 0.20

• C = 0.20 + 15x

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

• -6

• 36

• 24

• 4

A function is represented by the set of ordered pairs shown below.

{(-4, 3), (-1, 3), (0, 3), (1, 5), (3, 7)}

What is the range of this function?

• {7}

• {4}

• {3, 5, 7}

• {-4, 1, 0, 1, -3}

Choose the correct graph.

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Choose the correct graph.

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Choose the correct graph.

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Which point below is NOT part of the solution set?

• (0, 0)

• (-10, -10)

• (-1, 5)

• (5, 20)

Which equation shows the number of bottles left after x days?
A family buys a case of water with 48 bottles and drinks 5 bottles per day.

• y = 48x + 5

• y = -5 + 48x

• y = -5x - 48

• y = 48 - 5x