2016­10­11 chp 3.3 function notation.notebook
October 11, 2016
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Textbook Section 3.3
pg. 125-126 #1-31 odd
If you want extra practice for the quiz, look at
page 128.
HW Answers
2016­10­11 chp 3.3 function notation.notebook
October 11, 2016
Today's Objective
Function Notation
But first a donkey on a hoverboard.
2016­10­11 chp 3.3 function notation.notebook
October 11, 2016
The notation f(x), called function notation is
another name for y
f(x) = 3x - 4
Protip: This does not mean "f times x"
y = 3x - 4
Evaluate f(x) = −4x + 7 when x = 2 and x = −2.
*substitute for x
2016­10­11 chp 3.3 function notation.notebook
October 11, 2016
Let f(t) be the outside temperature (°F) t hours after 6 a.m. Explain the meaning of each statement.
a. f (0) = 58 b. f (6) = n c. f (3) < f (9)
Evaluate the function when x = −4, 0, and 3.
g(x) = −x − 1
2016­10­11 chp 3.3 function notation.notebook
October 11, 2016
For , find the value of x for which h(x) = −7.
* substitute -7 for h(x)
Graph f (x) = 2x + 5
x
f(x)
2016­10­11 chp 3.3 function notation.notebook
Graph the linear function.
g(x) = −x + 4
Find:
a) f(3) = b) f(­5) = c) f(?) = 6
What is the domain and range of the function?
October 11, 2016
2016­10­11 chp 3.3 function notation.notebook
October 11, 2016