Question

graph this function: $f(x) = x^2 - 4x - 5$
step 1: identify $a$ and $b$.
$a = 1$, $b = -4$
step 2: find the vertex using the formula $x = \frac{-b}{2a}$.
$x = \frac{4}{2(1)}$
$x = \square$

Explanation:

Step1: Simplify the fraction

We have the expression \( x = \frac{4}{2(1)} \). First, calculate the denominator: \( 2(1)=2 \). Then, divide 4 by 2.
\( x=\frac{4}{2} \)

Step2: Perform the division

\( 4\div2 = 2 \)

Answer:

2