Why is my TI-84 graph blank?

Check that the plot is enabled in Y=, try ZOOM → 6:ZStandard, and clear stale plots — see how to clear TI-84 memory.

How do I graph a vertical line on the TI-84 Plus CE?

Use parametric mode: set X1T=constant and Y1T=T with appropriate Tmin and Tmax in WINDOW.

How do I use Numeric Solver on the TI-84 Plus CE?

Press MATH → Numeric Solver…, enter an equation equal to zero, set a guess for x, and press SOLVE.

Can I graph xy² on the TI-84 Plus CE?

Rewrite as Y1=√(X) and Y2=-√(X) for y²=x, or use equivalent forms with appropriate domains.

Does the online TI-84 graph the same way?

Yes — use Y= and GRAPH on our free online emulator with the same keystrokes as the handheld.

How do I get fraction coordinates from a graph?

After CALC → intersect, highlight a decimal and press MATH → ▶Frac. More in our fractions tutorial.

Graphing Equations on TI-84 Plus CE (Functions, Lines & Solver)

Graphing equations on TI-84 Plus CE is the skill every algebra and calculus student needs. Whether you are graphing equations on ti 84 plus ce with variables, plotting on the TI-84 Plus CE Python edition, or practicing on a graphing equations on ti 84 plus ce calculator emulator, the workflow starts at Y=. This guide covers how to graph on a TI-84 Plus CE, vertical lines, curves like xy², and how to use Numeric Solver on TI 84 Plus CE.

Watch: Graphing equations on TI-84 Plus CE

Follow along with Y=, WINDOW, and GRAPH on the color CE model.

Practice the same keystrokes on our free TI-84 Plus CE online calculator. For slope homework checks, try the slope calculator.

Graph basics: Y=, WINDOW, GRAPH

Press Y= and enter Y1=X^2-4.
Press ZOOM → 6:ZStandard or adjust WINDOW.
Press GRAPH.
Use TRACE or 2nd → TRACE → intersect for key points.

Blank screen? See how to clear graphing calculator memory for stale plots and bad window values.

Enter equations in Y=

Use X,T,θ,n for x. Examples: Y1=2X+3, Y2=sin(X), Y3=X^3-2X. Toggle the left column to hide plots you are not using.

Graphing equations with variables

Store a value in X or use a letter variable: press STO→ after typing a number. For parametric or polar graphs, change graph mode under MODE. The TI-84 manual Level 2 covers tables and piecewise graphs.

How to graph a vertical line on a TI-84 Plus CE

Functions in Y= cannot be vertical. Switch to PARAMETRIC mode and set X1T=3, Y1T=T for the line x=3, with an appropriate Tmin/Tmax in WINDOW.

How to graph xy² on TI-84 Plus CE

Solve for y: Y1=sqrt(X) and Y2=-sqrt(X) for y²=x, or enter Y1=X^(2/3) style relations where defined. Use ZOOM → ZoomFit if the curve looks clipped.

How to use Numeric Solver on TI 84 Plus CE

Press MATH → Numeric Solver… (or find Solver in the catalog).
Enter an equation such as 0=2X+5 or Y1-Y2 after defining functions.
Set a guess for X, press SOLVE.

Numeric Solver shines when algebra is messy but you need one root quickly on homework.

Graph on TI-84 Plus CE Python edition

The Python model adds a coding app. For classroom graphing, the classic Y= menu still matches the standard CE. Use Python for loops and data; use GRAPH for quick visual checks during exams that allow the model.

Printable reference (PDF-style summary)

Bookmark this page as your graphing equations on ti 84 plus ce pdf alternative — the keystroke list above covers the workflows teachers assign most often. For SAT intersect tricks, read the complete TI-84 guide.

Fraction answers on graphs

After CALC → intersect, highlight a decimal and press MATH → ▶Frac. See our fractions on TI-84 Plus CE tutorial for more.

TI-84 Plus CE complete guide — stats, SAT, troubleshooting
TI-84 Plus CE Online Calculator — practice in your browser
Write & transfer notes — NoteFolio & TI Connect CE
Fractions — enter, convert, multiply
Clear memory — history, lists, graph DB
Reset tutorial — RAM, factory, exam prep
Charging guide — cable, indicators, battery
Slope Calculator — verify linear equations