The height, h, in feet of a piece of cloth tied to a waterwheel in relation to sea level as a function of time, t, in seconds can be modeled by the equation h = 8 cosine (StartFraction pi Over 10 EndFraction t). What is the period of the function?

  20 seconds

Step-by-step explanation:

The period is the value of t that makes the cosine argument change by 2π.

That value is ...

  2π = π/10t

  20 = t . . . . . . . multiply by 10/π

The period of the function is 20 seconds.

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.