Which of the following quadratic functions has a graph that opens downward? A. y= 3/2x^2 -3x+15 B. y= 5/2x-3x^2 C. y= 3x^2-x-1 D. y= -(2x^2-1)

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in