5-3-3

Drawing a Graph

u To store an X = constant expression *1

Example To store the following expression in memory area X4 : X = 3

3(TYPE)4(X=c) (Specifies X = constant expression.) d(Inputs expression.)

w(Stores expression.)

• Inputting X, Y, T, r, or θ for the constant in the above procedures causes an error.

u To store an inequality *1

Example To store the following inequality in memory area Y5 :

y> x2 – 2x – 6

3(TYPE)6(g)1(Y>) (Specifies an inequality.)

vx-cv-g(Inputs expression.)

w(Stores expression.)

u To create a composite function

Example

To use relations in Y1 and Y2 to create composite functions for Y3

 

and Y4

 

Y1= (X + 1), Y2 = X2 + 3

 

Assign Y1°Y2 to Y3, and Y2°Y1 to Y4.

 

(Y1°Y2 = ((x2 + 3) +1) = (x2 + 4) Y2°Y1 = ( (X + 1)) 2 + 3 = X + 4 (X ≧ –1))

Input relations into Y3 and Y4.

3(TYPE)1(Y=)J4(GRPH)

1(Y)b(1(Y)c)w

J4(GRPH)1(Y)c

(1(Y)b)w

• A composite function can consist of up to five functions.

*1A function cannot be stored into a memory area that already contains a function of a different type from the one you are trying to store. Select a memory area that contains a

function that is the same type as the one you are storing, or delete the function in the memory area to which you are trying to store.

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