A triangle has vertices at A(0, 0), B(4, 0), and C(2, 3). Wh...

Question

A triangle has vertices at A(0, 0), B(4, 0), and C(2, 3). Which coordinate proof confirms it is isosceles?

A

The slope ofAB is zero, and the slope of AC is undefined.

B

The distances AC and BC are equal.

C

The area of the triangle is a whole number.

D

The midpoint of AC lies on the y-axis.