Question

The graph shows the amount of water that remains in a barrel after it begins to leak. The variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel.

What is the slope of the line?
A. -2
B. -1/2
C. 7/16
D. 39/30

Answer 1

A. -2

Explanation:

took the test :))

Answer 2

A = ( 15 , 15 )

B = ( 6 , 33 )

`slope = (y(b) - y(a))/(x(b) - x(a)) \\`

`slope = (33 - 15)/( 6 - 15) \\`

`slope = (18)/( - 9) \\`

`slope = - 2`

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