Solve using the quadratic formula for -7d^2+2d+9=0

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?