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-3x - 9 = 3y -x - 3 = y y = -(x+3)
If you mean: 3y=-x+9 then y=-1/3x+3 and the perpendicular equation is y=3x+6
9x + 3y = -54 3y = -9x - 54 y = -(3x + 18) Therefore, the y-intercept of this equation is y=-18.
y = x-4 in slope intercept form
Hey there - First you must put this in y = mx + b (slope intercept format) format, and it will make finding the answers easy. 7x + 3y = -9 3y = -7x - 9 y = -7/3x - 3 Your slope is m, or -7/3 your y intercept is b, or -3 cheers! Donny