Question

x -2 -1 0 1 2 y 9 4 -1 -6 -11 find function rule

Answer 1

looks for every increase of 1 unit in the x's the corresponding y decreases by 5
so slope = -5
y = -5x + b
at x = -2, y = 9

9 = -5(-2) + b
b = -1

function rule:
y = -5x - 1