How do I solve the system graphically?

Question

Solve x² +y²= 25

4x² -9y=0

(x,y) smaller x value

(x,y) larger x value

Answer 1

You can solve graphically by first graphing the two equations (using a calculator or by hand).

You can use Desmos Calculator (online calculator that is very helpful.

Simply type in the equation x² + y² = 25 in line 1.

Then type in the equation 4x² - 9y = 0 in line 2.

The 2 equations will appear on the graph.

Then, click on the intersection points on the graph.

(An intersection point is a point where the two graphs meet, intersect, cross)

The coordinates will appear.

(-3,4) and (3,4)

Those are your solutions!!!