Answer:
f(3) =-12
f(-1) =-12
Step-by-step explanation:
HELLO THERE
f(3)=-2(3)^2+8(3)
f(3)=-36+24
f(3)=-12
----------------------------
f(-1) =2(-1) ^2+8(-1)
f(-1) =-4-8
//Both equal -12//
HAVE A GREAT DAY
f(x) = -2x² + 8x
f(3) = -2*(3)² + 8*3
= - 2*9 + 24
= - 18+ 24
f(3) = 6
f(1)= -2*(-1)² + 8*(-1)
= -2*1 - 8
= - 2 -8
f(1) = -10
