Find the amplitude y = -5 sin1/2x.

Question

jdoe0001 · Answer

http://regentsprep.org/Regents/math/algtrig/ATT7/amppic1.gif

anonymous · Answer

so is the answer 5pi/2 ?

ankit042 · Answer

value of sin function lies between +1 and -1 now try to answer

jdoe0001 · Answer

from the picture, what do you think will be the amplitude for $\bf -5sin\left(\frac{1}{2}x\right)$ ?

anonymous · Answer

I think I just confused myself

jdoe0001 · Answer

@maywadee313   sine and cosine functions, no matter what angle you throw at them, they will always return a value that's, as ankit042  said, -1 or 1, check your Unit Circle or even your calculator for that

jdoe0001 · Answer

-1 and between and 1 that is

jdoe0001 · Answer

never higher, never lower

anonymous · Answer

oh alrighty

jdoe0001 · Answer

so if that's the case, what do you think "y" is when $\bf y = -5sin\left(\frac{1}{2}x\right)$

jdoe0001 · Answer

keep in mind that -5 will multiply against a number, that number will "never be higher than 1, lower than -1"

so what do you think will be the HIGHEST value "y" will achieve?
so what do you think will be the LOWEST value "y" will achieve?

anonymous · Answer

so is the answer pi/5?

ankit042 · Answer

NO how did you get pi/5..can you explain?

ankit042 · Answer

read the explanation by @jdoe0001

jdoe0001 · Answer

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