# What does it mean to solve a problem graphically?

Mar 3, 2018

See explanation.

#### Explanation:

To solve the problrm graphically means to plot function graphs in the single coordinate plane and look for points where the graphs meet.

Example:

To graphically solve a system:

## $\left\{\begin{matrix}x + y = 7 \\ x - y = 5\end{matrix}\right.$

you have to draw two graphs on a single coordinate plane:

graph{(x+y-7)(x-y-5)=0 [-0.875, 19.125, -4.88, 5.12]}

The graphs cross at the point $\left(6 , 1\right)$ this means that the system has a solution: