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

2 Answers
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^2-4x+4#

#y=0^2-4(0)+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 #(0, 4)# the curve cuts the Y-axis.