Use the graph to solve the system of linear equations.
2x – y= -2
2x + 4y= 8

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

What is the range? can’t seem to find it out

What is the value of the discrimination for the quadratic equation 0=×2+2+×2