Question

Which points lie on the line: y = 5x - 4

(1,1)
(-3,-5)
(5,21)
(-5,29)
(12,55)

Answer 1

f(x) = 5x - 4

f(1) = 1 --> lies on the line

f(-3) = -19 --> lies obove the line

f(5) = 21 --> lies on the line

f(-5) = - 29 --> lies obove the line

f(12) = 56 --> lies under the line