Day 37 Function Rule from a Table.notebook
11/14
Aim: How do we write a function rule from a table?
Do Now: Finish Pg. 25
Hw: Pgs. 30­31
Test Friday!
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
6) This equation shows the amount of a candle that is left (in ounces) after burning for x hours. What is the initial value for this function, and what does it represent? Y = 12 – 0.2x
a) 12; the ounces burned each hour
b) 12; the ounces in the candle before it burns
c) ­0.2; the ounces in the candle before it burns
d) ­0.2; the ounces of the candle that burn each hour
Day 37 Function Rule from a Table.notebook
$5
$0
p = 5h
p = 5(10)
p = $50
November 14, 2016
0
5
10
15
20
Day 37 Function Rule from a Table.notebook
November 14, 2016
$15
$0
$15
$19
$75
15(4) + 15
$76
19(4)
Day 37 Function Rule from a Table.notebook
November 14, 2016
f(4) = ­7(4) + 12 = ­16
y = 3x = 6
­4x ­4x
2y = 10 ­ 4x
2 2
y = 5 ­ 2x
4 4
y = 2x ­ 3
3(4) ­ 2(6) = 1
12 ­ 12 = 1
0 ≠ 1 NO
{4, 7, 2, 5}
{3, 1, 5}
Yes
Day 37 Function Rule from a Table.notebook
November 14, 2016
zero
no
greatest slope
greatest y­int
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
Day 37 Function Rule from a Table.notebook
3) Joanne conducted an experiment on the growth rate of bacteria. The table shows her results.
a) Write a function rule for the number of bacteria, b, after h hours.
b) What will the number of bacteria be after 5 hours?
November 14, 2016
Day 37 Function Rule from a Table.notebook
November 14, 2016
4) Lisa has a babysitting job with her neighbors down the street. She works different hours for them depending on how often they need her. The table below shows the amount of money she makes for the hours she works.
a) Write a function rule for the
amount of money made, m, after
working h hours.
b) How much will she make after
14 hours?