Which graph shows data r value is most likely closest to 1

Sketch one cycle if the cosine function y=2cos2theta

I’m still confused on how to work the percentages

L|| m if m? 1=125 and m? 7=50 then m? 5= 5 55 75 105 next question ask for turn it in © 2014 glynlyon, inc. all rights reserved. terms of use