Question

18)Let f(x) = -3x + 4 and g(x) = 8x2 - 9. Find g(4) - f(4) . A)140 B)127 C)131 D)136​

Answer 1

Answer: -127

Step-by-step explanation:

They are giving you the corresponding x value for which you should plug into the function. So plug 4 into g(x) and plug 4 into f(x). Then subtract them

g(x) = -3(4) + 4 = -8

Im assuming that is $8x^2$

f(x) = 8(4)^2 - 9 = 119

Now do -8 - 119 to get -127

Answer 2

Answer:

Step-by-step explanation: