Contestant and like terms. What do they mean?

Step-by-step explanation:

Like Terms: terms that have the same variable raised to the same power. So like 5x plus 5x plus 5. 5x and 5x are like terms.

I'm going to assume you mean Constant instead of contestant so

Constant: Terms without variables

Example: 5x+2x+7

5x and 2x are like terms

7 is a Constant

The length of the diameter = sqrt ( (7-1)^2 + (5 - -3)^2)

= sqrt 100 = 10 units so the radius = 1/2 * 10 = 5 units

so the right side of the equation = 5^2 = 25

Centre of circle = midpoint of the diameter = (-3+5)/2 , (1 + 7)/2 = (1 , 4)

so the correct equation is (x - 1)^2 + (y - 4)^2 = 25