Can someone please help y=___x+_

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y=4x+(-9)

Step-by-step explanation:

Slope intercept form is y=mx+b

m is the slope which can be found using rise/run. In this case 4/1=4 so m=4

b is the y intercept which is the y value where the line passes through the X axis. This also can be found as the Y value where X=0 if that is easier for you. In this problem y=-9 where X=0. Therefore b=-9.

Plug these values back into the equation and you get the equation of the line in slope intercept form. For this line that is y=4x+(-9).