Can someone help me plz I will mark brainliest

What properties allow transformation to be used as a problem solving tool

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i