One spring day, Dylan noted the time of day and the temperature, in degrees Fahrenheit. His findings are as follows: At 6 a. m., the temperature was 56° F. For the
next 2 hours, the temperature rose 3° per hour. For the next 3 hours, it rose 4º per
hour. The temperature then stayed steady until 6 p. m. For the next 4 hours, the
temperature dropped 3° per hour. The temperature then dropped steadily until the
temperature was 61° at midnight. On the set of axes below, graph Dylan's data.
Hel pleas I’m terrible with graphing

Since Dylan noted the time of day and the temperature, in degrees Fahrenheit, and his findings are as follows: At 6 am, the temperature was 56 ° F, for the next 2 hours, the temperature rose 3 ° per hour, for the next 3 hours, it rose 4º per hour, and the temperature then stayed steady until 6 pm, while for the next 4 hours, the temperature dropped 3 ° per hour, and the temperature then dropped steadily until the temperature was 61 ° at midnight , to determine the average temperatures, the following tables must be made:

6 AM = 56

7 AM = 59

8 AM = 62

9 AM = 66

10 AM = 70

11 AM = 74

6 PM = 74

7 PM = 71

8 PM = 68

9 PM = 65

10 PM = 62

11 PM = 61.5

12 AM = 61

Thus, the average daily temperature was 68°F.

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Please find attached the required graph for the temperature time relationship

Step-by-step explanation:

The parameters given are arranged in a tabular form as follows;

At

Time                                            Temperature

6 a. m.                                            56° F

7 a. m.                                             59° F

8 a. m.                                            62° F

9 a. m.                                            66° F

10 a. m.                                           70° F

11 a. m.                                            74° F

12 p. m.                                           74°F

1 p. m.                                            74°F

2 p. m.                                            74°F

3 p. m.                                           74°F

4 p. m.                                           74°F

5 p. m.                                            74°F

6 p. m.                                           74°F

7 p. m.                                           71°F

8 p. m.                                            68°F

9 p. m.                                            65°F

10 p. m.                                           62°F

11 p. m.                                            61.5°F

12 a. m.                                            61°F

With the above table as the data points, the graph can be drawn

From Excel, The Mean temperature is approximately 68.1°F

The standard deviation is 6.079 °F

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is