Answer:

Step-by-step explanation:
The given function is
.
We want to find the average rate of change of this function from
to
.
This is given by:

This implies that;






Answer:
y=2x+4
Step-by-step explanation:\solving for the slope you get (12-8)/(4-2)=4/2=2
solving for the y intercept you subtract 4 from 8 because 2*2 is 4 and (2,8) is 2 x values away from the y intercept so 8-4=4 so the y intercept is 4
so y=2x+4
45kg-15kg=30kg
Percentage: 30kg=0.3%
Percentage =0.3%
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