Answer:
30
Step-by-step explanation:
21 + 9 = 30
You mean f(x) = my+ b
This is called slope
It is A because the radius is 10 which means that if x=0 then y must equal 10. (0,5) would be inside of the circle. If this doesn't make sense graph the circle and the points and you'll see what I mean.
Answer:

Step-by-step explanation:
step 1
Find the slope
we have
(0,-6) and (1,4)
The slope is equal to

step 2
Find the equation of the line in slope intercept form
The equation of the line in slope intercept form is

we have

-----> y-intercept (given value in the table)
substitute
