You buy a cell phone which costs $30, plus an additional $0.30 per minute.

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You buy a cell phone which costs $30, plus an additional $0.30 per minute.

Write an equation to represent this situation

Whats the slope? What does the slope represent the context of the problem?

What is the y-intercept? What does the y-intercept represnt in the context of the problem?

AngelicaMarrufo Nov 5, 2014

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Best Answer

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y = .30x + 30

The slope is .30 = 3/10

The slope represents the cost per minute of phone usage

The y intercept is (0, 30)

This represents the fixed cost of $30.....we pay this cost even if we don't talk at all !!!

CPhill Nov 5, 2014

1⁺⁰ Answers

+128598

+10

Best Answer

y = .30x + 30

The slope is .30 = 3/10

The slope represents the cost per minute of phone usage

The y intercept is (0, 30)

This represents the fixed cost of $30.....we pay this cost even if we don't talk at all !!!

CPhill Nov 5, 2014

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