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Xylomixyee
Determine the slope of the line represented by the equation: -3x+4=12 do I need to set it up as y=mx+b?
if you want, but actually, the slop is m, like you said.
There isn't a y and the final result would be x=## which is a vertical line which would mean that the slope is undefined(vertical line test)
I just need to solve, but I don't need to set it up as y=mx+b?
No, because as @Grazes said, the slope is undefined, because there is no y. "If there is no y, then there is no slope!" --my teacher