Math test. help please!!! NO LINKS
1 answer:
Actually Welcome to the concept of Modulus function.
Modulus function always gives a Positive integer or an Absolute value.
hence,
we get as,
f(x) = 7|x|
==> f(-1) = 7|-1|
==> f(-1) = 7*1
==> f(-1) = 7
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