Answer:3
Step-by-step explanation:
The equation of the circle shown is:

<h3>What is the equation of a circle?</h3>
The equation of a circle of center
and radius r is given by:

From the graph, it can be seen that the center of the circle is (0,0), thus
and the radius is of r = 10, hence the equation is:

You can learn more about the equation of a circle at brainly.com/question/24307696
Answer: 45?
Step-by-step explanation: Sorry If I'm wrong, I haven't learned this yet but I tried my best.
Undefined
Rise/ run = slope
1 rise / 0 run = 1/0 which is undefined
By using y=mx+b you get y=-3/8x-17/8