What is the Pythagorean theorem?

In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

c^2 = a^2 + b^2

Step-by-step explanation:

the answer to the question is a  

it has the same slope and the same y-intercept.