Question

Let f(x) =x-3/2x+7.Find f(4)×f(-1)​

Answer 1

Answer:

= 4/75

Step-by-step explanation:

f(x) = x-3/2x+7

f(4) = 4-3/ 2(4) + 7

f(4)= 1/ 8+7

f(4)= 1/15

f(-1) = -1-3/ 2(-1) + 7

f(-1) = -4/ -2 + 7

f(-1) = -4 / 5

therefore,

f(4) × f(-1)

= 1/15 × -4/5

= -4/75

I hope this will help you

Answer 2

Answer:

f(x) =x-3/2

f(4)=4-3/2

=5/2

f(-1)=-1-3/2

=-5/2

f(4)Xf(-1)==5/2*-5/2

=-25/4