bobamilkgaming123 bobamilkgaming123

15-09-2022
Mathematics

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If f(x)=9-2|x + 21, find f(-7).

If fx92x 21 find f7 class=

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alexphongle2000 alexphongle2000

15-09-2022

Answer: -1
Same thing as the other question that I helped you with:

Substitute -7 for x

f(-7) = 9-2|-7+2|

Treat the absolute value like parenthesis, and follow the rules of PEMDAS

9-2|-5|

9-2*5

9-10

-1

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