Question

the water level in Lake Hylia changes at an average of -9/16 inch every 3 years. a. Based on the rate above, how much will the water level change after one year? Show your calculations and model your answer on the vertical number line, using O as the original water level.

Answer 1

1) Gathering the data

-9/16 inches ------ 3 years

x 1 yr

Let's set a proportion for that:

3x = -9/16 Divide both sides by 3

x = -9/16/3

x = -3/16 inches per year

2) Let's draw the vertical number line: