Question

Please explain how to solve quadratic equations by graphing, then help me walk through this problem x^2-6x+8=0 (I’ll post a graph below)

Answer 1

In order to solve a quadratic eq by graphing, you need to find the factors of the given quadratic equation.

@BeautifulBelieber

Answer 2

I don't understand :/

Answer 3

\[ \huge x^2-6x+8=0 \rightarrow x^2-4x-2x+8=0\]
\[\huge \rightarrow x(x-4)-2(x-4)=0\]
\[\huge \rightarrow (x-4)(x-2)=0\]
\[\huge i.e. (x-4)=0 or (x-2)=0\]
\[\huge i.e. x= 4 or x= 2 \rightarrow x= 2, 4\]
Now in the graph draw lines intersecting X-axis at 2 and 4 and parallel to Y- axis.

@BeautifulBelieber