How do you find the vertex of # y = x^2 – 6x + 5 #?
1 Answer
Apr 2, 2016
Complete the square
Explanation:
After completing the square,
#y = x^2 - 6x + 5#
#= (x - 3)^2 - 4#
Here is a graph of
graph{x^2 - 6x + 5 [-2, 8, -5, 5]}
We can see (either graphically or algebraically) that the lowest point, or minimum, occurs when
The coordinate of the vertex is
