Question

Look at the data.

Answer 1

Answer:

2 cm

Step-by-step explanation:

Data

Time (min)     Depth (cm)

2                    8

4                    15

6                    29

8                    37

10                   39

12                   49

14                    55

The  line of best fit to find the amount of water is:

y = 3.9107x + 1.8571

(I used Excel to get it, you can use a calculator or similar programs if you want to)

In the equation, y represents depth (in cm) and x represents time (in min).

The amount of water, in cm, present  initially in the bathtub is found at time equal to zero. Replacing x = 0 in the equation, we get:

y = 3.9107(0) + 1.8571

y = 1.8571  ≈ 2 cm