Using the Polynomial Root Finder App on TI 84 Plus CE

This video tutorial by Rob demonstrates how to solve a quadratic equation using the TI 84 Plus CE Graphing Calculator. It guides viewers through accessing the Polynomial Root Finder App, configuring necessary settings, entering the equation, solving it, and saving or graphing the results. The tutorial emphasizes understanding the calculator's settings and options for handling real and complex numbers, as well as saving and visualizing solutions.

What is the purpose of the Polynomial Root Finder App on the TI 84 Plus CE?

• To graph linear functions

• To find the roots of polynomial equations

• To calculate derivatives

• To solve linear equations

Which menu option should you select to access the Polynomial Root Finder?

• Option 10

• Option 5

• Option 8

• Option 1

What should the 'Order' setting be for the equation x^2 + 2x - 8 = 0?

• 4

• 3

• 2

• 1

When should you select the a+bi option in the settings?

• When the order is 2

• When working with complex numbers

• When the equation is linear

• When working with real numbers

What does the AUTO setting determine?

• The type of notation used

• The number of decimal places

• Whether the answer is in fraction or decimal

• The angle measurement unit

Which setting should be used for quadratic equations in terms of notation?

• Exponential

• Normal

• Engineering

• Scientific

What is the first step to enter a new quadratic equation in the app?

• Press the GRAPH tab

• Press the SOLVE tab

• Press the CLEAR tab

• Press the STORE tab

What are the roots of the equation x^2 + 2x - 8 = 0?

• x = 4 and x = -2

• x = 0 and x = -2

• x = 2 and x = -4

• x = 1 and x = -8

Which option allows you to save the equation to the y= screen?

• Store Coefficients

• Save Roots

• Store Polynomial to Y=

• Save to LIST

What color will the graph of the equation be displayed in?

• Blue

• Green

• Yellow

• Red