What is the vertex of the parbola?

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1

Find four solutions of the given function. write the solutions as ordered pairs. 4x – y = 4