2.2 The Graph of a Function: Difference between revisions

Revision as of 17:41, 22 August 2022

1.

f(x)=y

x

is called the input or argument of the function and

f(x)

or

y

is called the output or value at

x

.

ex. If

f(x)=x^{2}+x+1

what is the value of

f

at

x=3

?

ans. the value of

f

at

x=3

is 13.

2.

(x,y){\text{ or }}(x,f(x))

is called an ordered pair where

x

is the input and

y{\text{ or }}f(x)

is the output

@@ Line 8: / Line 8: @@
 : <math>x</math> is called the <b>input</b> or <b>argument</b> of the function and <math>f(x)</math> or <math>y</math> is called the <b>output</b> or <b>value</b> at <math>x</math>.
+:: ex. If <math>f(x)=x^2+x+1</math> what is the value of <math>f</math> at <math>x=3</math>?
+:: ans. the value of <math>f</math> at <math>x=3</math> is 13.
 :2. <math>(x, y) \text{ or } (x, f(x)) </math> is called an <b>ordered pair</b> where <math>x</math> is the input and <math>y \text{ or } f(x)</math> is the output