Question

Week 4 - Math 8 - Assessment
POSSIBLE POINTS: 20
Suppose that the water level of a river is 34 feet after 3 days of rain and 62 feet after 10 days of rain. The river was 22 feet
before the rain began.
What is the rate of change for this scenario?
What is the y-intercept for this scenario?
Write an equation in Point-slope form.
Change that equation to Standard form.
:: 4
1/4
። 12
:: (0, 0)
:: (0, 22)
:: (3, 34)
:: (10, 62)
-
:: (y 34) = 4(x+3)
:: (y - 10) = 1/4(x - 62)
(y-62)=4(x-10)
:: 4x - y = -22
3x+34y = 22
10x 62y= 22
3 of 10
21

Answer 1

- The rate of change for this scenario is 4 feet per day.
- The y-intercept for this scenario is 22 feet.
- Equation in Point-slope form: y - 34 = 4(x-3)
- Equation in Standard form: 4x - y = -22