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Question 50686: How do you use a graphing calculator to graph the following equation:
x2-11x+18. I am assuming by X2 it means x to the second power.
Found 2 solutions by AnlytcPhil, rapaljer:
Answer by AnlytcPhil(1806)   (Show Source):
You can put this solution on YOUR website! How do you use a graphing calculator to graph the following equation:
x2-11x+18. I am assuming by X2 it means x to the second power.
I assume you have a TI-82, 83 or 84.
If so,
1. Press the " Y= " key
If anything is listed after Y1= (or after Y2= or any of the Y's),
then press "CLEAR" to get rid of it
2. After Y1= type X²-11X+10
To type the exponent " ² ", use the " x² " key.
3. Press the " WINDOW " key
After Xmin= type -10
After Xmax= type 20
After Xscl= type 5
After Ymin= type -25
After Ymax= type 20
After Yscl= type 5
(Leave the resolution set at 1, if your TI has this)
4. Press the " GRAPH " key
If this doesn't work, then something else need to be cleared.
Post again or email me.
Edwin
AnlytcPhil@aol.com
Answer by rapaljer(4671)  (Show Source):
You can put this solution on YOUR website! Notice that there are five buttons across the top of the calculator. The first one is "y=" and the last one is "GRAPH". Start with the "y=" button. This opens up a whole screen full of y1=, y2=, y3=, etc. Next, you need to find the x-variable button, which is the second button down in the second column. This button actually says something that looks like "x,t,0,n". Press this button to get "x". To get the "squared" you can either press the x^2 button in the first column, or you can press the "^2" buttons. Then finish typing in the equation with a "minus 11 x + 18".
After you get that all typed in, press the last button across the top that says "GRAPH", and it should graph a parabola. See my handout on my website, since you may want to adjust the window to see it better.
R^2 at SCC
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