I have a TI-84 Plus and I can't get two lines or functions to draw on one graph...help??

Answer 1

Oh...
Simply press "Y=", and enter the functions into separate y-vars.... i.e. input "x+6" into Y1 and "X^2-5" into Y2 to graph both simultaneously... To see the graphs, press TRACE.

For future reference, you can access the online searchable guidebook at http://education.ti.com/educationportal/sites/US/productDetail/us_ti84pse.html?bid=6 .

Hope I've helped! =)

Answer 2

After you enter a new functrion, check to make sure that the "=" sign by Y2, Y3, or whatever you are calling the thing you want to graph is highlighted. If it isn't, use your left arrow to move over to the "=" sign, and hit ENTER to turn on that function.

Next make sure that statistical plots are turned off. At the top of the "Y=" screen, you will see Plot1, Plot2, and Plot3. NONE of those should be highlighted. (If they are, it can screw up graphing.) If any of them is highlighted, QUIT to a blank screen, hit 2nd and "Y=", choose #4 (PlotsOff), and hit ENTER.

If that still doesn't work, check your MODE menu. The fourth line down should have "FUNC" highlighted. Below that iit will most likely say "CONNECTED" and "SEQUENTIAL". Those are the factors that affect graphing. If those don't say that, highlight the appropriate thing, and hit ENTER.