For f(x)= 2x-15 ,find f(x) when x=-4

I just need some help on this question.

The vertex of this parabola is at (-2, 5). which of the following could be it’s equation? a. y=3(x+2)^2-5 b. y=3(x-2)^2-5 c. y=3(x+2)^2+5 d. y=3(x-2)^2+5

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.