Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a

Question

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x).

What is the rate of change in Erinn’s hourly wage per year?

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Jasmine 5 days 2021-10-11T22:27:03+00:00 1 Answer 0

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    2021-10-11T22:29:01+00:00

    Answer:

    The rate of change in Erinn’s hourly wage per year is 1.25\$\ hour/year

    Step-by-step explanation:

    we have that

    x —-> the time in years that she worked at a company

    y —-> represent the hourly wage

    -5x+4y=32 —-> linear equation that represent the situation

    Solve for y

    4y=5x+32

    y=(5/4)x+32/4

    y=1.25x+8

    The slope m of the linear equation is

    m=1.25\$\ hour/year

    The rate of change in Erinn’s hourly wage per year is equal to the slope of the linear equation

    so

    The rate of change in Erinn’s hourly wage per year is 1.25\$\ hour/year

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