Chris paid $9.18 for a necklace. This amount includes the sale tax of 8% what was the cost of the necklace before tax?
1 answer:
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ANSWER
Frequency=2
Midline =3
Amplitude =5
Period =π
EXPLANATION
We have:
The given function is of the form;
where
a=|5| =5 is the amplitude
and b=2 is the frequency.
and 2π/b=2π/2=π
The range of the given function is
8≤y≤-2
The midline is