Question

If y = x-4, which point corresponds to the location where y = -7? (Hint: Keep in mind that this question gives you the

value of y, not x.)

Answer 1

(-3, -7)

Explanation:

y=-7

y=x-4

-7 = x - 4 ==> since y=-7 and y=x-4, -7 = x-4

-7 + 4 = x - 4 + 4 ==> solve for x by adding 4 on both sides

-3 = x

x = -3

x=-3, y=-7 ==> (-3, -7)

Answer 2

(- 3, - 7 )

Explanation:

given

y = x - 4 ← substitute y = - 7 into the equation and solve for x

- 7 = x - 4 ( add 4 to both sides )

- 3 = x

then point is (x, y ) = (- 3, - 7 )