TI-89 Calculator Function Operations

This tutorial explains how to determine function values on the TI-89 graphing calculator using two methods. The first method involves defining functions directly and calculating their values. The second method uses the Y= screen, similar to the TI-84 calculator, to find function values. The tutorial covers setting up the calculator, defining functions, and calculating values using both methods, providing a comprehensive guide for users.

What is the first step to start a new problem on the TI-89 calculator?

• Press F1 and select New Problem

• Press Second and F1 for F6, then 2 for New Problem

• Press Mode and select New Problem

• Press Alpha and F1 for New Problem

How can you change the mode to exact on the TI-89 calculator?

• Press Alpha, F2, and choose Exact

• Press Mode, F1, and select Exact

• Press Mode, F2, and scroll to Exact

• Press Second, F1, and select Exact

Which function is defined as negative x squared plus three x minus three?

• k(x)

• g(x)

• h(x)

• f(x)

What is the function value of f(3) using the defined function?

• 0

• 9

• -9

• 3

What is the exact function value of g(8)?

• 5 - 4√2

• 5 + 4√2

• 4 - 5√2

• 4 + 5√2

What is the second method for determining function values on the TI-89?

• Using the Table screen

• Using the Graph screen

• Using the Y= screen

• Using the List screen

How do you enter f(x) in the Y= screen?

• Enter f(x) in Y2

• Enter f(x) in Y1

• Enter f(x) in Y4

• Enter f(x) in Y3

What is the function value of y1(3) if f(x) is in y1?

• 3

• 0

• 9

• -9

Which function is entered in Y2 on the TI-89?

• h(x)

• g(x)

• k(x)

• f(x)

What is the benefit of using the Y= screen for function values?

• It provides a graphical representation

• It allows for easy editing of functions

• It offers a convenient y variable

• It automatically calculates derivatives