What graph represents the correct solution for 3x+y=9

Question

What graph represents the correct solution for 3x+y=9

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    2021-09-08T22:12:30+00:00

    Hello from MrBillDoesMath!

    Answer:  A line with slope -3 with y intercept 9

    Discussion:

    Subtracting 3x from both sides of

    3x + y = 9  

    gives

    3x – 3x + y = 9 -3x

    or

    y = 9 -3x

    This is a line (has the form y = mx + b where m = -3 (the slope) and b = 9) As the slope is negative, the line is descending or pointing “downward” as x increases.

    Regards, MrB

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