Please answer correctly

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3

Find the roots of the equation below. x^2 - 6 + 9 = 0

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons