Finding Zeros of a Polynomial Function

This video tutorial guides viewers through finding the zeros of a polynomial function using a graphing calculator. It covers entering the function, setting the graphing window, and using the trace and zero functions to identify zeros. The tutorial also provides tips for using different calculator models.

What is the primary goal of the video tutorial?

• To demonstrate how to find zeros of a polynomial function

• To introduce polynomial division

• To teach how to solve quadratic equations

• To explain the basics of graphing calculators

Which key is used to input exponents on the calculator?

• The multiplication key

• The division key

• The up arrow key

• The subtraction key

What window settings are suggested for the x-axis?

• -10 to 10

• -5 to 5

• -1 to 10

• 0 to 5

What is the purpose of using the 'Trace' function on the calculator?

• To change the graph color

• To adjust the brightness

• To move the cursor along the graph

• To find the y-intercept

Where does the polynomial function cross the y-axis?

• At (2, 0)

• At (3, 0)

• At (1, 1)

• At (0, 2)

What is the first step in using the zero function on the calculator?

• Press the graph button

• Identify the left boundary

• Set the window size

• Enter the polynomial equation

What is the approximate value of one of the irrational zeros found?

• 3.618

• 1.618

• 2.618

• 2.382

Which method can be used to find irrational zeros besides using a calculator?

• Synthetic division

• Long division

• Graphical estimation

• Matrix multiplication

What type of calculator is used in the video?

• TI-84 Plus

• Casio FX-991EX

• TI-83 Plus

• HP 35s

What is the main difference when using a newer calculator as mentioned in the video?

• The color of the display

• The way equations are entered

• The size of the calculator

• The type of batteries used