Find the vertex and y-intercept of the quadratic functio. 18. y=-x2 + 6x -8

19. y = x2 - 8x + 11

20. y = 3x2 + 18x + 10

21. y = -2x2 - 12x-5

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft