Sharp EL-9400, EL-9600c manual 3-1 3-2, EL-9650/9600c/9450/9400 Graphing Calculator

EL-9650/9600c/9450/9400 Graphing Calculator

Step & Key Operation	Display	Notes
(When using EL-9650/9600c)	(When using EL-9650/9600c)
*Use either pen touch or cursor to operate.

3-1

3-2

Enter the equation y = - x for Y2.

Y= * CL (-) X//T/n

View both graphs.

GRAPH

Notice how Y2 decreases (going down from left to right) instead of increasing (going up from left to right). Negative slopes (m<0) make the line decrease or go down from left to right.

4-1Enter the equation y = x + 2 for Y2.

Y=

*

CL

X//T/n + 2

4-2View both graphs.		Adding 2 will shift the y = x
		graph upwards.
	GRAPH

Making a graph is easy, and quick comparison of several graphs will help students understand the characteristics of linear equations.

1-1