Is (1, - 7) a soulution to the equation y = r - 8?

Answer 1

To determine if (1, -7) is a solution to the equation y = r - 8, we need to substitute the given values of x and y into the equation and check if the equation holds true.

Substituting x = 1 and y = -7 into y = r - 8:

-7 = r - 8

Adding 8 to both sides:

-7 + 8 = r - 8 + 8

1 = r

So, with r = 1 and y = -7, the equation y = r - 8 is satisfied.

Therefore, (1, -7) is a solution to the equation y = r - 8.