Question

How do you graph f(x)=x2−4x+5?

Answer 1

Answer : x = 2.5

Step by step explanation :

$f(x) = x \times 2 - 4x + 5$

To find x - intercept/ zero, substitute f(x) = 0. Use the commutative property to reorder the terms.

$= > 0 = 2x - 4x + 5$

Collect the like terms by subtracting their coefficients.

$= > 0 = - 2x + 5$

Move variable to the left side and change its sign.

$= > 2x = 5$

Divide both sides of the equation by 2.

$= > x = \frac{5}{2}$

$= > x = 2.5$