Question

Write the slope intercept form of -y = 4-x

Answer 1

Answer: y = x - 4



-y = 4 - x (Original)

Multiply by -1.

y = -4 + x

Reorder the terms.

y = x - 4



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Answer 2

Slope intercept form:

y=mx+b

Right now we have:

-y=4-x

x=1 because it’s not being multiplied by anything

y-intercept = 4 because it’s what you’re adding

Then we just need to move 4 to the other side of “x”

And with that, we conclude with a line in slope intercept form:

-y=x-4

It’s a negative 4 and a positive x, because you’re supposed to do the opposite

If it’s a negative, you add. If it’s a positive, you subtract.