Bell Ringer –
Make a table & equation
• Mrs. Flook puts a pot of 68° water on
the stove. She notices every 2
minutes the temperature increases 19°.
Number of minutes, m, and
temperature, t, form a linear
relationship.
Bell Ringer – Make a table &
equation
Mrs. Flook puts a
pot of 68° water on
the stove. She
notices every 2
minutes the
temperature
increases 19°.
Number of minutes,
m, and temperature,
t, form a linear
relationship.
m
0
2
4
6
t
68
87
106
125
Bell Ringer – Make a table &
equation
Mrs. Flook puts a
pot of 68° water on
the stove. She
notices every 2
t
minutes the
temperature
increases 19°.
Number of minutes,
m, and temperature,
t, form a linear
relationship.
= 9.5m + 68
How can you create
and interpret graphs,
tables, and equations
of a linear function?
Part 2  Interpret
Today we are going to read
linear functions for
information
Before we do that, get out your notes
from yesterday.
Tell your High Five partner how to
create a table, graph, and equation
from a linear function.
Deb is a hairdresser who rents a station
in a salon for a daily fee. The amount
of money, m, Deb makes depends on
the number of haircuts, n, is described
by the linear function
m = 45n – 30 .
Multiple Choice
Deb is a hairdresser
who rents a station
in a salon for a
daily fee. The
amount of money,
m, Deb makes
depends on the
number of haircuts,
n, is described by
the linear function
m = 45n – 30 .
A
A haircut costs $30
and the station
rent is $45.
B
A haircut costs $45
and the station
rent is $30.
C
Deb must do 30
haircuts to pay the
$45 rental fee
D
Deb deducts $30
from each $45
haircut for the
station rent.
Deb is a hairdresser who rents a station
in a salon for a daily fee. The amount
of money, m, Deb makes depends on
the number of haircuts, n, is described
by the linear function
m = 45n – 30 .
Multiple Choice
Deb is a hairdresser
who rents a station
in a salon for a
daily fee. The
amount of money,
m, Deb makes
depends on the
number of haircuts,
n, is described by
the linear function
m = 45n – 30 .
A
If Deb does 4
haircuts, she’ll
make $180.
B
If Deb does 4
haircuts, she’ll
make $60.
C
If Deb does 4
haircuts, she’ll
make $40.
D
If Deb does 4
haircuts, she’ll
make $150.
An ice cream stand sells cones and
sundaes. The equation 34 = 2c + 4s
represents the relationship of buying c
number of cones and s number of
sundaes.
Multiple Choice
An ice cream stand
sells cones and
sundaes. The
equation
34 = 2c + 4s
represents the
relationship of
buying c number
of cones and
s number of
sundaes.
A
34 people bought
ice cream.
B
$2 is the cost of 1
sundae and $4 is
the cost of 1 cone.
C
$2 is the cost of 1
cone and $4 is
the cost of 1 sundae
D
2 people bought
cones and 4 people
bought sundaes.
An ice cream stand sells cones and
sundaes. The equation 34 = 2c + 4s
represents the relationship of buying c
number of cones and s number of
sundaes. (7, 5) is a solution to this
equation.
Multiple Choice
A
An ice cream stand
sells cones and
B
sundaes. The
equation 34 = 2c +
4s represents the
relationship of buying C
c number of cones
and s number of
sundaes. (7, 5) is a
D
solution to this
equation.
7 cones and 5
sundaes were sold
14 cones and 20
sundaes were sold
2 cones & 4
sundaes were sold
9 cones and 9
sundaes were sold
Jacob got money for his birthday. He
also is saving $7 per week. The
equation y = 7x + 50 describes the
linear relationship.
Multiple Choice
Jacob got money
for his birthday.
He also is saving
$7 per week.
The equation
y = 7x + 50
describes the
linear
relationship.
A
You can’t tell how
much Jacob got
for his birthday
B
Jacob got $7 for
his birthday
C
Jacob got $57 for
his birthday
D
Jacob got $50 for
his birthday
Jacob got money for his birthday. He
also is saving $7 per week. The
equation y = 7x + 50 describes the
linear relationship.
Multiple Choice
Jacob got money for his birthday. He also is saving
$7 per week. The equation y = 7x + 50
describes the linear relationship.
A
x
0
1
2
B
y
7
57
107
x
0
1
2
C
y
0
57
114
x
0
1
2
y
50
57
64
The equation y = -10x + 30
A
(-10, 30) is a solution
to the equation.
The equation
y = -10x + 30
B
This equation has a
y-intercept at y = -10
and a slope of 30.
Which is of the
following is true?
C
This equation has a
slope of -10 and a
y-intercept at y = 30.
D
-10 is the
independent variable
and 30 is the
dependent variable.
Multiple Choice
The equation y = -10x + 30
Multiple Choice
The equation y = -10x + 30
A
B
35
45
40
35
30
25
20
15
10
5
0
30
25
20
15
10
5
0
0
2
4
C
35
30
25
20
15
10
5
0
0
2
4
0
2
4