In this activity, students will use various features of the calculator to investigate the solutions to a variety of equations, and to solve finance problems.

Before the Activity

See the attached PDF file for detailed instructions for this activity

Print pages 51 - 64 from the attached activity PDF file for your class

During the Activity

Distribute the pages to the class.

Follow the Activity procedures:

Solving a System of Linear Equations:

Enter the number of equations

Enter the equations and record the coefficients

Obtain the solution to the system

Finding Roots of Polynomials:

Enter the order and the coefficients of the polynomial

Find the solution to the system and store the value of the roots

Solving Equations Using the SOLVER Function:

Enter a non-polynomial equation

Graph the expression

Set the Trace value of x as the initial value

Solve to obtain the second solution of the equation

Solving an Integral Equation:

Enter the equation

Enter an initial guess for the main variable

Solve for the value of the main variable

Multivariable Equations:

Enter the equation and the coefficients

Set the values for the variables

Graph the expression, with one variable being treated as a constant

Change the value of the variable and graph the expression again

Obtain the solution of the system

Finding Zeros of a Function:

Enter the expression

Assign values to the variables

Obtain the solution for the equation

Graph the expression and observe the number of solutions

Trace the graph and obtain all solutions

Solving a Matrix Equation:

Enter the matrix equation

Determine the initial value of x and set the bound

Plot the graph

Trace the most negative solution

Solve the equation

After the Activity

Review student results:

As a class, discuss questions that appeared to be more challenging