hi, i nned to put these into a sin graph: Y=sinx Y=sin(x+90) Y=3sinx i can to the first and third ones but not the second, would it look like this: if this is incorrect can someone please tell me how to improve. thanks!
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You have the general idea with the intercepts and turning points correct for one cycle. I know the software used tricky to master but you must understand the function is a smooth curve. I would use technology to see this.
Apart from the fact it should be a curve the graph (intercepts, maxima etc) are fine. You may notice that the graph is the same as $\displaystyle y = \cos(x)$
I know it has to be a curve but I haven't got the software for this so I have to use 'paint'. So what I have posted is correct apart from when I actually do it on paper I draw curves?
Yes - like on this pic (yes I know it says cos(x) but it's the same graph)
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