Question

Joe uses the equation to predict the water level at the lake. In May, the water was 45 feet deep. Since May the water consistently decreases by § foot each month (x). What equation is Joe using?

Answer 1

The equation is Joe using is : water_level = 45 - 0.5 * x

Let us consider,

water_level is the current water level in feet

45 is the initial water level in May (feet)

0.5 is the decrease in water level per month (feet)

x is the number of months since May

This equation represents a linear relationship between the water level and the number of months passed since May. The slope of the line is -0.5, indicating a decrease in water level with time. The y-intercept is 45, which represents the initial water level in May.

So the equation becomes:

water_level = 45 - 0.5 * x