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Evaluate f(x)=7x+7 when x=-9
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15 votes
15 votes
Evaluate f(x)=7x+7 when x=-9

User Big Rich
by
3.2k points

1 Answer

8 votes
8 votes

Answer:

-56

Explanation:

f(x) = 7x + 7

x = -9

We meed to plug in x = -9 into the first equation:

f(-9) = 7(-9) + 7

We can open up the parentheses:

f(-9) = -63 + 7

And then simplify:

f(-9) = -56

User Merna Mustafa
by
4.0k points
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