Sharp EL-9600 User Manual download pdf (Page 10)

Step & Key Operation

*Use either pen touch or cursor to operate.

Display

EL-9650/9600c Graphing Calculator

Notes

2-1

2-2

View both graphs.

Notice that the addition of 2 moves

the basic y =

graph up two units

and the addition of -2 moves the

basic graph down two units on

the y-axis. This demonstrates the

fact that adding k (>0) within the standard form y = a (x -

+ k will move the basic graph up k units and placing k

(<0) will move the basic graph down k units on the y-axis.

3-2

View both graphs.

Notice that the multiplication of

2 pinches or closes the basic

y = x

graph. This demonstrates

the fact that multiplying an a

(> 1) in the standard form

y = a

(x - h)

+ k

will pinch or close

the basic graph.

4-1

Change the equation in Y2 to

y = -2x

Notice that the multiplication of

-2 pinches or closes the basic

y =

graph and flips it (reflects

it) across the x-axis. This dem-

onstrates the fact that multiply-

ing an a (<-1) in the standard form y = a (x - h)

+ k

will pinch or close the basic graph and flip it (reflect

it) across the x-axis.

Change the equation in Y2 to y =

+2.

2-1

3-1

Change the equation in Y2 to y = 2

The EL-9650/9600c allows various quadratic equations to be graphed easily.

Also the characteristics of quadratic equations can be visually shown through

the relationship between the changes of coefficient values and their graphs,

using the Substitution feature.

4-2

View both graphs.

2nd F

GRAPH

SUB

ENTER ENTER

GRAPH

2nd F

SUB

ENTER

GRAPH

2nd F SUB

(

)

ENTER

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Sharp EL-9600 User Manual Page 10

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