What is the point-slope equation of a line with slope -3 that contains the point (-8,-4)?

Step-by-step explanation:

The equation of the line is point-slope form is:

Where m is the slope of the line and () is a  point of the line.

You know that the slope is -3 and the problem gives you the point (-8,-4), therefore you only need to substitute them into the equation shown above.

Then, you obtain:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: