Question

Each context represents a linear relation. Read each problem situation and determine the y -intercept. Write the y -intercept in coordinate form.

The water level of a river drops each day from 34 feet. After 3 days the water level is at 32.5 feet. After 8 days, the water level is at 30 feet

Answer 1

(0,34)

Explanation:

The equation of the line is

y = -0.5x + 34

Day 3 water level 32.5

Day 8 Water level 30

As the water drops by 2.5, the days increased by 5, so the slope is

-2.5/5 = -0.5

The y intercept is where the water was at the beginning. It was at 34 feet so the y-intercept would be (0,34)