```
xFunctions Lesson Number 1
>> Start xFunctions
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"Main Screen" Assignment
Plot, sketch, and label the following equations:
>> y = 3*x - 3		>> y = -2*x + (5/3)
Label the graphs with the equation and the y-intercept as (0,b).

Use the "New Expr." button.
Type the equation at Let y = [                   ] then "Done".
Set x egual to 0 to fing the y-intercept.
Do this at the "x = [   ] Set" input below the graph.
Two different equations must be plotted using the "Main Screen"
option since this option can only plot one equation at a time.

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"Multigraph" Assignment / Click the "Main Screen" bar to change options.
Plot, sketch, and label the following equations:
>> No.1	y = x
>> No.2	y = -2*x + 4
>> No.3	y = (-3/5)*x -4
>> No.4	y = 1
Label each line with the eqaution and the slope on the same coordinate plane.
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"Animate" Assignment / Click the "Main Screen" bar to change options.

Set "k st start" to -10 then "k at end" to 10.
Set "Interval" to 20.

>>Plot y = x - k then click "Go".

What does the value of k do to the line when it goes through the animation sequence?