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need grade 9 math help with equations and slopes?

the equation for the amount of garbage in a landfill site is G=4000+300d where G stand for the amount of garbage measured in tons and D stands for the amount of days that go by

How would i find the slop and the y-intercept of this equation when its graphed?

also i had to do a table and i need the first differences (which i think is 300) but then i need the rate of change. Wouldn't the rate of change also be 300?

2 Answers

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  • ?
    Lv 7
    6 years ago
    Favorite Answer

    Slope intercept form is

    y = mx + b

    Where m is the slope and b is the y-intercept

    In the equation

    G = 4000 + 300d

    The variables have been changed and

    G is y while d is x

    Also the order of the terms on the right has been switched.

    Rearranging the order of the slope intercept equation it becomes

    y = b + mx

    Changing the variables it becomes

    G = 4000 - 300d

    The slope, m, is 300 <-----

    The y-intercept, b, is 4000 <-----

  • 4 years ago

    Grade 9 Math Equations

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