This is a linear relationship. The slope-intercept form of the linear equation is:

Where,
- m is the rate of change (positive if increasing rate and negative if decreasing rate)
- c is the y intercept, or the initial value
<u><em>Rate of change is 2.5 quarts per minute (it is decreasing so m is -2.5)</em></u>
<u><em>Initial value is 50 quarts, so c is 50.</em></u>
Plugging in the values we get
.
Changing variables to w instead of y and t instead of x, gives us,
. Where w is warts of water left in the tub and t is the time in minutes.
There is no viable solution when t=30 because at t=20, w=0 (
). It means after 20 minutes, there is no water left. So t=30 minutes doesn't make sense.
ANSWER:
Modelling equation: 
When
, there is no VIABLE solution
Answer:
Step-by-step explanation:
answers
AB
AC
AE
Slope=-4 or -4/1
Work:
(2, 5) (3, 1)
x1 y1. x2 y2
M= y2-y1/x2-x1
M= 1-5/3-2
M= -4/1
M=-4
the answer is 5.10729613...
The first function is y = 4x + 5 so the slope is 4
To find the slope of the second function, do rise or run which is 6-10/1-3 = 2
since 4 is greater than 2, function 1 is greater so the answer is the second choice.