There is $500 in Holly’s bank account. She takes out $50 from her account each month but doesn’t put money back in. What is the slope/rate?

Question

There is $500 in Holly’s bank account. She takes out $50 from her account each month but doesn’t put money back in. What is the slope/rate? *

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Trung Dũng 5 years 2021-08-21T03:52:54+00:00 1 Answers 23 views 0

Answers ( )

  1. Nick
    0
    2021-08-21T03:54:12+00:00
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    Answer:

    The rate of change or slope m  = -50

    Step-by-step explanation:

    The slope-intercept form of the line equation

    y = mx+b

    where

    • m is the rate of change or slope
    • b is the y-intercept

    Given that there is $500 in Holly’s bank account.

    Thus, the y-intercept b = 500

    It is stated that she takes out $50 from her account each month but doesn’t put money back in.

    It means the rate of change or slope is decreasing.

    Thus, the rate of change or slope m  = -50

    EXTRA BONUS!

    We can also determine the line equation by substituting m = -50 and b = 500 in the slope-intercept form

    y = mx+b

    y = -50x + 500

    Here:

    The slope m = -50

    The y-intercept = 500

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