Answer:
Step-by-step explanation:
It’s 4
Hope it helps
Functions: y = -x + 11, y = 2x^2 - 6x + 4, y = 7
Not Functions: x = 3, x^2 + y^2 = 81, y^2 = -5x - 12
f(x) = 4x - 7
f(2) = 4(2) - 7
f(2) = 8 - 7 => 1