Use the graph representing bacteria decay to estimate the domain of the function and solve for the average rate of change across the domain. Bacteria Decay
100
90
80
70
60
Amount of Bacteria (in thousands)
50
40
30
20
10
90
100
0
10
20
30 40 50 60 70 80
Amount of Time (in minutes)

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

5/20 so 25%

step-by-step explanation:

hello! just here for points! though i wish i knew!