The data table below represents a function and shows the average high temperature on certain days of the year.
a. Identify the independent and dependent​ variables, and describe the domain and the range.
b. Make a clear graph of the function.
c. Describe the function in words.

Jan. 1
Feb. 1
Mar.1
Apr. 1
May 1
June 1
July 1
Aug. 1
Sep. 1
Oct. 1
Nov. 1
Dec. 1
Dec. 31
43degrees Upper F
36degrees Upper F
48degrees Upper F
57degrees Upper F
68degrees Upper F
78degrees Upper F
87degrees Upper F
82degrees Upper F
82degrees Upper F
66degrees Upper F
51degrees Upper F
47degrees Upper F
44degrees Upper F
Question content area bottom
Part 1
a. The independent variable is

temperature
time
and the dependent variable is

temperature.
time.
The domain of the function is

all days
certain days
over the course of a year and the range of the function is temperatures between

43 and 44
36 and 87
degrees Upper F.
Part 2
b. Choose the correct graph below.
A.
180
1
365
30
40
50
60
70
80
90
Days
Average high temperature



A coordinate system has a horizontal axis labeled days from 1 to 365 in intervals of 30 and a vertical axis labeled Average High Temperature from 30 to 90 in intervals of 10. Line segments connect the following points from left to right: (0, 66); (30, 68); (60, 58); (90, 68); (120, 66); (150, 68); (180, 78); (210, 68); (240, 68); (270, 66); (300, 66); (330, 68); (360, 58). All coordinates are approximate.
B.
180
1
365
30
40
50
60
70
80
90
Days
Average high temperature



A coordinate system has a horizontal axis labeled days from 1 to 365 in intervals of 30 and a vertical axis labeled Average High Temperature from 30 to 90 in intervals of 10. Line segments connect the following points from left to right: (0, 88); (30, 82); (60, 78); (90, 66); (120, 52); (150, 48); (180, 44); (210, 44); (240, 36); (270, 48); (300, 58); (330, 68); (360, 78). All coordinates are approximate.
C.
180
1
365
30
40
50
60
70
80
90
Days
Average high temperature



A coordinate system has a horizontal axis labeled days from 1 to 365 in intervals of 30 and a vertical axis labeled Average High Temperature from 30 to 90 in intervals of 10. Line segments connect the following points from left to right: (0, 58); (30, 78); (60, 88); (90, 44); (120, 68); (150, 36); (180, 36); (210, 36); (240, 78); (270, 58); (300, 78); (330, 48); (360, 44). All coordinates are approximate.
D.
180
1
365
30
40
50
60
70
80
90
Days
Average high temperature



A coordinate system has a horizontal axis labeled days from 1 to 365 in intervals of 30 and a vertical axis labeled Average High Temperature from 30 to 90 in intervals of 10. Line segments connect the following points from left to right: (0, 44); (30, 36); (60, 48); (90, 58); (120, 68); (150, 78); (180, 88); (210, 82); (240, 78); (270, 66); (300, 52); (330, 48); (360, 44). All coordinates are approximate.
Part 3
c. Choose the correct description below.
A.
The temperature increases during the first half of the year and then decreases during the second half of the year.
B.
The temperature stays relatively constant throughout the year.
C.
The temperature decreases during the first half of the year and then increases during the second half of the year.
D.
There is no discernible pattern in the temperature throughout the year.
The independent variable isand the dependent variable isand the dependent variable isThe domain of the function isThe domain of the function isover the course of a year and the range of the function is temperatures betweenover the course of a year and the range of the function is temperatures betweendegrees Upper FChoose the correct graph below. Choose the correct description below.