Question

What does vertex mean ?

Answer 1

$x^2+18x+95=2$

In a graph of a quadratic equation the vert4ex is the extreme point (maximum or minimum).

To write the given equation is vertex form:

$y=a(x-h)^2+k$

1. Write the equation in standrad form:

$f(x)=ax^2+bx+c$

$\begin{gathered} f(x)=x^2+18x+95-2 \\ \\ f(x)=x^2+18x+93 \end{gathered}$

2. Find the coordinates of the vertex (h,k):

To find the coordinate h use the next formula:

$h=\frac{-b}{2a}$$h=\frac{-18}{2(1)}=-9$

To find the coordinate k evaluate f(x) when x=h:

$undefined$