SOLUTION: i do not understand how to put an equation into a graphing calculator. The problem i am working on asks how you would put this in to graph an ellipse 9x^2+25y^2=225 but i dont

Question 254907: i do not understand how to put an equation into a graphing calculator. The problem i am working on asks how you would put this in to graph an ellipse
9x^2+25y^2=225
but i dont know what how to do it on a calculator
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
In order to graph, you need to solve for y

Start with the given equation.

Subtract from both sides.

Divide both sides by 25.

Take the square root of both sides (don't forget about the plus/minus)

or Break up the plus/minus to form two separate equations.

So the two equations that you would enter into your calculator would be and

If you enter them in, you should get the graph:

Take note that the red graph is and the green graph is which both form the graph of
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