Question

Screenshot attached! Find equation for graph.

Answer 1

looks like some kind of cosine

Answer 2

2cos(x) +1

Answer 3

range is from \(-1\) to \(3\) which has length 4, so it must be \(2\cos(x)\) although it is shifted up one

Answer 4

ok done

Answer 5

i can tell because at \(0\) you get the highest point on the graph

Answer 6

lets start with cosine

Answer 7

thats cosx