Lydia graphed δdef at the coordinates d (−2, −1), e (−2, 2), and f (0, 0). She thinks δdef is a right triangle. Is lydia's assertion correct?.

Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9