The circumference c of a circle is a function of its radius r

write the equation in function form

graph the function

is the domain discrete or continuous?

is -2 in the domain? explain

is 6 in the range? explain

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Use the graph of the sine function y=2sinθ shown below

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.