Nine times the input minus seven is equal to the output. if the input is -1, what is the output
16

Franco wants to double the volume of the cone. what should he do?

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

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