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Pavel [41]
3 years ago
5

If f(x) = |2x - 4|, find f(-7)

Mathematics
2 answers:
Digiron [165]3 years ago
7 0

hey there!!

Given :

f ( x ) = l 2x - 4 l , find f ( - 7 )

We will have to substitute the value of -7 instead of x

f ( -7 )  = l -14 - 4 l

f ( -7 ) = l -18 l

As the value in a mod shall always be positive, the answer would become 18

Hence, the required answer is 18

Hope my answer helps!!


Ivenika [448]3 years ago
4 0
F(-7)= |2(-7) - 4|= |-14-4|= |-18|= 18
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