Question

He table shows ordered pairs of the function y = 8 - 2x. when x = 8, the value of y is

Answer 1

y = 8 -2x

Substituting that value of x = 8,

y = 8 - 2*x = 8 - 2*8 = 8 - 16 = -8

Hence, when x = 8; y = -8

Answer 2

x=8

subsitute
y=8-2x
y=8-2(8)
y=8-16
y=-8

the value of y is -8