13.1B - Solving Systems of Equations with a Calculator

​This means that all of the lines will overlap and there will be infinite number of solutions!

Here are some important feature you need to know about on your TI Calculator!

Let's get started!

Take a moment to locate the "on" button.

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Now find the blue "2nd" button. This unlocks the blue labels on the calculator so that each button has a new function.

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Try pressing "2nd" and "on" to turn the calculator back off!

Helpful buttons!

Now find the button. You will need this in a moment to type in the x in your equation.

More helpful buttons!

Important: The "Window" button controls what we can see when we graph an equation on the calculator. If at any time you cannot see the intersection of the lines, you should press window and edit the numbers like what you see here. This will center the graph around the origin.

SCREENSHOT THIS SLIDE!

A few more buttons

Let’s watch and learn

Watch the video
CAREFULLY and pause so
that you can push the
buttons along with the
instructor. The video will stop at 2:30.

By the end of this
video, you should be
able to solve a system
of equations using your
calculator.