Question

7. Which ordered pair is a solution of the equation y = –9x + 4? (1 point)
(10, –86)
(–4, –58)
(6, –41)
(–6, 57)

Answer 1

y = -9x + 4
The first is (10 -86), so try x = 10 and see whether y turns out to be -86.
y = -9(10) + 4 = -90 + 4 = -86
Yes it does, so (10, -86) is a solution.