Question

If F(x)=-x+6 and g(x)=3x^2-x+3 find the value of (g•f)(8)

Answer 1

9514 1404 393

Answer:

-374

Explanation:

f(8) = -8 +6 = -2

g(8) = (3x -1)x +3 = (3·8 -1)8 +3 = 23·8 +3 = 187

Then the product is ...

(g•f)(8) = g(8)•f(8) = 187·(-2)

(g•f)(8) = -374