2.2 The Graph of a Function: Difference between revisions

Latest revision as of 19:20, 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

?

The value of

f

at

x=3{\text{ 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 7: / Line 7: @@
 :1. <math>f(x)=y</math><br>
-: <math>x</math> is called the <b>input</b> or <b>argument</b> of the function <br> <math>f(x)</math> or <math>y</math> is called the <b>output</b> or <b>value</b> at <math>x</math>.
+: <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>?
+:: The value of <math>f</math> at <math>x=3 \text{ is } 13</math>
-:2. <math>(x, y) \text{or} (x, f(x)) </math>
+: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