ashlebrown
ashlebrown ashlebrown
  • 20-06-2017
  • Mathematics
contestada

f(x) = -1/3x find the average rate of change of f from -2 to 2

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irspow
irspow irspow
  • 20-06-2017
average rate=(change in y)/(change in x)

if f(x)=-x/3

r=( f(2)-f(-2) )/(2--2)

r=(-2/3-2/3)/(2+2)

r=(-4/3)/4

r=-4/12

r=-1/3

For a line, this is always true, since all lines have a constant velocity, the average velocity over any interval is equal to the slope.

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