f(x) = x2 – 6x+8 then f’(5) – f’(8) is equal to
Answers
Answered by
4
Answer
-12
Step-by-step explanation:
f(x)=2x-6x+8
Substitute 5 in the equation
f(5)=2(5)-6(5)+8
=28
Substitute 8 in the equation
f(8)=2(8)-6(8)+8
=40
f(5)-f(8)
28-40
=-12
Answered by
6
Answer:
f'(x)= 2x-6
f'(5)=2*5-6
=10-6=4
f'(8)=2*8-6
=16-6=10
f'(5)-f'(8)=4-10=-6
Step-by-step explanation:
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