How do you use the graph to solve #0=x^2-8x+11#?
1 Answer
May 5, 2018
Look where the graph intersects the x axis.
graph{x^2-8x+11 [-10, 10, -5.21, 5.21]}
Explanation:
We can see that the graph of
So, the solutions of this equation are indeed those two values.
This happens because the graph is defined as
The graph intersects the x axis only when the y value is 0.
Therefore the solutions for the equation are the points where the graph intersects the x axis.