How do you graph a quadratic equation on the ti-84 plus?

Answer 1

Here is an example of how to graph 2x2+3x+5.

Press Y=. Then, next to Y1= type 2x2+3x+5. Use the x2 button to type the second 2 in 2x2. To type x, press the X,T,θ,n button or press ALHPA and then press X (above STO>).

• If you do not see Y1= then press mode, select FUNC, and try again.

• If you get an error, try pressing 2ND and then STAT PLOT (above Y=), select option 4, PlotsOff, and then press ENTER until the calculator says Done. Then try again.

• If you cannot see the graph, then press ZOOM and select the sixth option, zoom standard and press ENTER. If you still cannot see the graph, press ZOOM and select option 0, ZoomFit (at the bottom) and press ENTER. If you still cannot see the graph, then clear what is next to Y1= and try again. If there are things next to Y2= and so on, you may want to clear them to make the graph easier to see.