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3 years ago

8

Suppose f(x)=2×+5 find the value of -2f(x+1)

1 answer:

loris [4]3 years ago

3 0

F(x) = 2x + 5

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Find f(x + 1) :
-----------------------------------
f(x +1) = 2(x + 1) + 5
f(x +1) = 2x + 2 + 5
f(x + 1) = 2x + 5

-----------------------------------
Find -2f(x+1):
-----------------------------------
-2(fx+1) = -2(2x + 5)
-2(fx+1) = -4x - 10

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Answer: -2(fx+1) = -4x - 10
----------------------------------------------------------------------

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