MATH HELP PLEASE STUDY GUIDE ? A helix is a three-dimensional spiral. The coiled strands of DNA and the edges of twisted crepe paper are examples of helixes. In the diagram, the y-coordinate of each edge illustrates a cosine function. Write an equation for the y-coordinate of one edge.

Question

anonymous · Answer

attachment

goldphenoix · Answer

@jim_thompson5910

jim_thompson5910 · Answer

what's the amplitude

anonymous · Answer

@jim_thompson5910 8.5??

jim_thompson5910 · Answer

what's the center line

jim_thompson5910 · Answer

the distance from the center line (which is horizontal) to the peak is the amplitude

anonymous · Answer

@jim_thompson5910 i don't know how to find it..:/

jim_thompson5910 · Answer

the center line is on top of the x axis, see it?

anonymous · Answer

@jim_thompson5910 yeah i do.. would the center line be 0? because it's between 1 an d-1.

jim_thompson5910 · Answer

y = 0 is the center line, yep

the distance from the center line to the peak is 1 unit

jim_thompson5910 · Answer

so the amplitude is 1

jim_thompson5910 · Answer

what's the period?

anonymous · Answer

@jim_thompson5910 12?

jim_thompson5910 · Answer

start at (0,1) and follow the path of the curve

jim_thompson5910 · Answer

when do you reach back up to y = 1 again?

anonymous · Answer

@jim_thompson5910 12 because the cycle starts again at the 12 mark??

jim_thompson5910 · Answer

I think at 12, the cycle is at its lowest point

anonymous · Answer

@jim_thompson5910 it's at its highest point at 1?? when it starts off.

jim_thompson5910 · Answer

yes that's true

anonymous · Answer

@jim_thompson5910 so would that be the period?

jim_thompson5910 · Answer

I think it's doing this

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