The sides of a triangle have equations:

y=5/4x+21/4, y=-3/4x+13/4 and y=1/4x+1/4

Prove it is not a right triangle, and state what type of triangle it is.

-I know that it is not a right triangle by looking at the slopes in the equations, neither is a negative reciprocal of the other making them perpendicular. Im assuming it is scalene by looking at the y-intersept. I dont remember how to convert the equation from slope intercet form into coordinates.Im assuming i have to find the distance between each point im just not sure how to break the equation down, please help.

Thank you