Question

Given the function f(x)= -x^2 +8x+9
Part A
State whether the vertex represents a maximum or minimum point for the function. Explain you r answer.
Part B
Rewrite f(x) in vertex form by completing the square.

Answer 1

@bia545

Answer 2

@dan815

Answer 3

@geerky42

Answer 4

@israa88

Answer 5

@Nnesha

Answer 6

Can you do part A?

Note that coefficient of \(x^2\) is negative, so what does that mean?

Answer 7

that its going to be negative

Answer 8

if leading coefficient is negative then equation should have minimum point
and if leading coefficient is positive then equation should have maximum point