Answer:
It can be many answers since it’s on a graph
Step-by-step explanation:
That equation isn’t the rule so test it out on number so and you will get point to put on a graph
Y is the independent variables
k is the dependent variable
Answer: 
<u>Step-by-step explanation:</u>
The general form of a sin/cos function is: y = A sin/cos (Bx-C) + D where the period (P) = 2π ÷ B
In the given function,
→ 
Half of that period is: 
Calculate the period for each of the options to find a match:
