Answer:
Constant of proportionality is 190.
Step-by-step explanation:
To find proportionality constant we will find difference of weights after 2 days and at birth.

Now we will find difference of weights after 14 days and at birth. We will divide the difference by 14.


We can see that weights are increasing at a constant rate of 190 pounds per day. Therefore, our constant of proportionality is 190.
80:2
80 divided by 2 ... which gets you 40. About 40 miles an hour.
Your ratio: 80:2
If you have a graphing calculator just put in the equation in 'y=' (not the i equation), and then go to 2nd trace and see where the y=0, those numbers under the x column are the zeros. For the first one, the zeros are: -1, .5, and 2.8. For the second question the zeros are: -3 and about 1.9. The zeros with a decimal are estimations.