How to Find X & Y Intercepts on a Graphing Calculator

How to Find X & Y Intercepts on a Graphing Calculator
••• UnionStep/iStock/GettyImages

Using a graphing calculator is a fast and effective way to identify the X and Y intercepts of a function. Using the built-in tools allows you to find the intercepts without doing the algebra.

    Enter the equation. Press the "Y=" button on the calculator. Clear out any existing equations. Enter the equation paying careful attention to include all parentheses and operators.

    Graph the equation. Press the "Zoom" button. Select a zoom that will work for your equation. It will need to include the X and Y intercepts.

    Find the Y intercept. Press the "Trace" button. Press the "0" button. This will move the cursor to the Y intercept where X = 0. Look at the bottom of your screen; the Y-intercept will be displayed there.

    Find the X intercept(s). Press the "2nd" key then the "Calc" key. This accesses the trace menu. Scroll down to "Zero" and press "Enter." Using the arrow keys, scroll to the left of the X intercept and press "Enter." Scroll to the right of the intercept and press "Enter'" twice. The X intercept will be displayed the bottom of your screen. Some equations have more than one X intercept; perform these steps for each one.

Related Articles

How to Clear Matrices on a TI-84
How to Find X-Intercept & Y-Intercept
How to Find the Slope of a Plotted Line With the TI-84...
How to Find the X Intercept of a Function
How to Reset a TI89
How to Find a Parallel Line
How to Find Vertical & Horizontal Asymptotes
How to Find Y Value for the Slope of a Line
How to Solve a Parabola
How to Program a TI 83 Plus Calculator to Solve Rational...
How to Solve for Both X & Y
To Calculate Arcsine, What Buttons Do You Press on...
How to Find Equations of Tangent Lines
How to Add Parentheses to Make a Statement True
How to Solve 3-Variable Linear Equations on a TI-84
How to Find Asymptotes & Holes
How to Create Linear Equations
How to Factor Trinomials on a TI-84
How to Calculate a Horizontal Tangent Line

Dont Go!

We Have More Great Sciencing Articles!