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Enter expression, e.g. (x^2-y^2)/(x-y)

Enter expression, e.g. x^2+5x+6

Enter expression, e.g. (x+1)^3

Enter a set of expressions, e.g. ab^2,a^2b

Enter equation to solve, e.g. 2x+3=4

Enter equation to graph, e.g. y=3x^2-1

Depdendent Variable

Number of equations to solve:

Equ. #1:

Equ. #2:

Equ. #3:

Equ. #4:

Equ. #5:

Equ. #6:

Equ. #7:

Equ. #8:

Equ. #9:

Solve for:

Enter inequality to solve, e.g. 2x+3>4

Enter inequality to graph, e.g. y<3x^2-1

Dependent Variable

Number of inequalities to solve:

Ineq. #1:

Ineq. #2:

Ineq. #3:

Ineq. #4:

Ineq. #5:

Ineq. #6:

Ineq. #7:

Ineq. #8:

Ineq. #9:

Solve for:

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Linear Relations and Functions

Objective Learn to use a graphing calculator to graph linear relations and equations.

This is an exploration lesson, both in using the graphing calculator and in introducing the relationship between the equation of a line and its graph.

Here are some examples.

Examples

Graph each pair of linear equations.

1) y = 3x + 7 and y = 2 - 5x

These equations are in slope-intercept form, so y is given explicitly in terms of x . This means that 3 x + 7 and 2 - 5 x can be entered directly into the calculator.

2) 4x + 3y = 5 and 7x - 2y = 1

In these equations, you must first solve for y, and then use the calculator.