#1**+2 **

Can't be sin function because it starts at zero at the origin (and there is no L-R shift in any of the answers)

Cos funtion starts at 1 at the origin....multiplying it by 7 stretches it up and down by 7 adding 3 shifts it up 3

so your answer looks good to me

ElectricPavlov Mar 22, 2019

#1**+2 **

Best Answer

Can't be sin function because it starts at zero at the origin (and there is no L-R shift in any of the answers)

Cos funtion starts at 1 at the origin....multiplying it by 7 stretches it up and down by 7 adding 3 shifts it up 3

so your answer looks good to me

ElectricPavlov Mar 22, 2019