SOLUTION: I have a graphing question. I am new to using graphing calculators. I have worked out the super basic understanding of how to use the function portion of my TI-84 Plus. However,

Question 153188: I have a graphing question. I am new to using graphing calculators. I have worked out the super basic understanding of how to use the function portion of my TI-84 Plus. However, when I key in y1 for f(x)=x2+x=-9, and I try to graph it and/or calculate it -- I never get the correct vertex -- which is suppose to be the ordered pair of (0.5,-9.25). I've tried working this so much, I am now completely confused. I know that my parabola opens upward because of the 1 co-effient. I know that it is to be a minimum. I've tried going into where I choose to calcuate the minimum. Yet I am missing something. I have to get this, otherwise, I am not able to proceed to continue my class. This is all online.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm not too familiar with the TI 84 plus, but this page might be able to help.
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