# How do you find the y intercept for y = x^2 - 4x + 4?

Sep 28, 2015

The y-intercept is $4$.

#### Explanation:

The y-intercept is the value of $y$ when $x = 0$. Therefore, substitute $0$ for $x$, and solve for $y$.

$y = {x}^{2} - 4 x + 4$

$y = {0}^{2} - 4 \left(0\right) + 4 =$

$y = 4$.

Sep 28, 2015

Y intercept is 4.

#### Explanation:

To find the Y-intercept, find the value of this function at $x = 0$

y=x^2−4x+4
At x=0; y =(0^2)-(4.0)+4 = 4

At $\left(0 , 4\right)$ the curve cuts the Y-axis.