How do you identify the important parts of #g(x)= x^2-4x+4# to graph it?
1 Answer
Oct 5, 2015
Intercept: 4
Minimum value:
Explanation:
From the equation, any number behind
Next, complete the square so that the equation is in the form of
If you don't know how to complete a square, it's like this:
- Divide the coefficient of
#x# by#2# - Take the square out of the
#x# , so you will get#(x-2)^2# - Then square the
#2# inside the bracket, which gets you#(x-2)^2-4+4# - Finally simplify the equation.
#(x-2)^2#
Since there is no number after the brackets, the minimum value of
Minimum points=
(Always switch the negative signs into positive and vice versa for the completed square!)
graph{x^2-4x+4 [-7.19, 8.614, -0.26, 7.64]}
