Question

What is the equation in standard form of the line which passes through (–2, 6) and has a slope of –1?

Answer 1

You should know how to do this by now. Try to understand it.

y = mx + b

M is always slope.

y = -1x + b

Plug in your points x, y into this.

6 = -1(-2) + b

Solve for b.

b = 4

Plug b back into y = -1x +b.

Answer is y = -x + 4

Answer 2

If you want ax + by = c form, you move -x over to the other side.

x + y = 4