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Mathematics 10 Online
OpenStudy (anonymous):

CAN SOMEONE HELP ME WITH A SIMPLE TRIG PROBLEM!

OpenStudy (anonymous):

OpenStudy (anonymous):

SIMPLE?

OpenStudy (anonymous):

I am sorry m8 Can't help

OpenStudy (saiyan):

im only in Algebra 2

OpenStudy (anonymous):

SOMEONE?

OpenStudy (freckles):

Not sure which one you need help with.

OpenStudy (freckles):

part a) just look for graph that matches y=5 sin(x+pi) let's try to draw a graph here. the amp=5 the period=2pi the phase shift is -pi can you graph y=5sin(x+pi)?

OpenStudy (anonymous):

1st questions answer looks like option A

OpenStudy (anonymous):

@freckles so the answer to prt a of the question is answer choice "A"

OpenStudy (freckles):

yes that looks good you can also plug in numbers like 0 and -pi/2 and -pi and so on to help you pick out the right one

OpenStudy (freckles):

what are the x-intercepts of y=5sin(x+pi) in that graph

OpenStudy (anonymous):

so part a is "A"

OpenStudy (anonymous):

I dont know what the x intercepts are

OpenStudy (freckles):

do you know hot solve sin(x+pi)=0?

OpenStudy (anonymous):

yes

OpenStudy (freckles):

that will give you the x-intercepts if it isn't clear from the graph A

OpenStudy (anonymous):

so that is answer choice C

OpenStudy (freckles):

|dw:1438062133167:dw| hmmm... you should know that sin(2pi+pi)=0 and sin(pi+pi)=0 and sin(0+pi)=0 and sin(-pi+pi)=0 and sin(-2pi+pi)=0 and sin(-3pi+pi)=0

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