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(question info below)

Slope-intercept form: y = mx + b [m is the slope, b is the y-intercept, or the y value when x = 0 ---> (0, y)]

To find the equation's y-intercepts, you can rearrange the variables, and isolate/get y by itself

#1

cx + ay = b     Subtract cx on both sides

ay = b - cx        Divide a on both sides

   (0, ) is your answer

Do the same for the rest, and you should get:

#2 (0, )

#3 (0, )

#4 (0, )

7200

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