Observe the table:

Lisas temperature during an illness over a -day period.

**a.**

Lisas temperature from on Monday to on Monday.

**Find the average rate of change.**

Consider the table Lisas temperature on Monday is and on Monday is .

.

(Formula for rate of change)

(Substitute and)

(Subtract: )

(Simplify)

The average rate of change in Lisas temperature is .

**b.**

Lisas temperature from on Tuesday to on Wednesday.

Find the sign of the rate mean.

**Find the average rate of change.**

Consider the table Lisas temperature on Tuesday is and on Wednesday is .** **

.

(Substitute and )

(Subtract: )

(Simplify)

The average rate of change from on Tuesday to on Wednesday is .

The answer is reasonable,Then the number should be negative because her temperature is dropping.

**c.**

During which period was the average rate of change in Lisas temperature the greatest.

The average rate of change in Lisas temperature was greatest during Monday to

is .

**a.** The average rate of change in Lisas temperature is .

**b. **The average rate of change from on Tuesday to on Wednesday is .

**c.**

The average rate of change in Lisas temperature was greatest during Monday to

is .

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