Question

b) f (x) = ×2 - 1
f ( -2) =
f ( -1) =
f ( 0 ) =
f ( 1 ) =
f ( 2 ) =​

Answer 1

f ( x ) = ×2 - 1

f ( -2) = (-2)² -1= 4-1 = 3

f ( -1) = (-1)² -1= 1-1= 0

f ( 0 ) = 0² -1 = 0 -1 = -1

f ( 1 ) = 1² -1 = 1-1= 0

f ( 2 ) = 2² -1 = 4-1= 3