Question

as part of a science experiment on evaporation, ella measured the height of water in a glass over a period of time. the function f(x)=31 - 0.19x gives the estimated height in centimeters (cm), of the water in the glass x days after the start of the experiment which of the following is the best interpretation of 31 in this context? a. the estimated height, in cm, of the water at the start of the experiment b. the estimated height, in cm, of the water at the end of the experiment c. the estimated change in the height, in cm, of the water each day d. the estimated number of days for all the water to evaporate

Explanation:

Step1: Recall function - initial value concept

The function is \(f(x)=31 - 0.19x\), where \(x\) is the number of days after the start of the experiment.

Step2: Find the value of the function at the start

When \(x = 0\) (start of the experiment), \(f(0)=31-0.19\times0=31\).

Answer:

A. the estimated height, in cm, of the water at the start of the experiment