Question

The high temperatures for several days are shown in the table.

Which answer describes the average rate of change from day 3 to day 5?



Responses

The high temperature changed by an average of −3 degrees per day from day 3 to day 5.
The high temperature changed by an average of , negative 3, degrees per day from day 3 to day 5.

The high temperature changed by an average of −6 degrees per day from day 3 to day 5.
The high temperature changed by an average of , negative 6, degrees per day from day 3 to day 5.

The high temperature changed by an average of −4 degrees per day from day 3 to day 5.
The high temperature changed by an average of , negative 4, degrees per day from day 3 to day 5.

The high temperature changed by an average of −2 degrees per day from day 3 to day 5.
The high temperature changed by an average of , negative 2, degrees per day from day 3 to day 5.
Day High Temperature (degrees Fahrenheit )
1 67
2 63
3 59
4 58
5 53

Answer 1

Okay, let's calculate the average rate of change:

On day 3, the high temperature was 59 degrees.

On day 5, the high temperature was 53 degrees.

So the temperature change from day 3 to day 5 was 59 - 53 = 6 degrees.

And the number of days was 5 - 3 = 2 days.

So the average rate of change = (6 degrees) / (2 days) = 3 degrees per day

The closest choice is:

The high temperature changed by an average of −4 degrees per day from day 3 to day 5.

So the answer is:

5