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6 votes
6 votes
Given the value evaluate this functionf(x) = -8x+20; 5-2 [f(-1)]

User Brauliobo
by
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1 Answer

15 votes
15 votes

To calculate: 5 - 2[f(-1)]

We need to calculate first f(-1), so we need to replace x by -1 in the equation of f(x) as:

f(x) = -8x + 20

f(-1) = -8*(-1) + 20

f(-1) = 8 + 20

f(-1) = 28

Now, we can replace f(-1) by 38 and solve as:

5 - 2[f(-1)]

5 - 2*28

5 - 56

- 51

Answer: -51

User Cuizizhe
by
2.4k points
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