Mathematics
Grade10
Easy

Question

Find the average rate of change of s left parenthesis x right parenthesis equals cube root of x text  over  end text 1 less or equal than x less or equal than 4.

  1. 0.493
  2. 0.393
  3. 0.293
  4. 0.193

hintHint:

We know that average rate of change=fraction numerator m a x space v a l u e minus m i n space v a l u e over denominator n minus 1 end fraction, now to find the min value of s(x) we will put the min value of x and to find max value of s(x) we will put max value of x.

The correct answer is: 0.193


    table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell s left parenthesis 1 right parenthesis equals cube root of 1 equals 1 end cell row blank cell s left parenthesis 4 right parenthesis equals cube root of 4 almost equal to 1.58 end cell end table
A v e r a g e space r a t e space o f space c h a n g e space equals space equals fraction numerator s left parenthesis 4 right parenthesis minus s left parenthesis 1 right parenthesis over denominator 4 minus 1 end fraction equals fraction numerator 1.58 minus 1 over denominator 3 end fraction equals fraction numerator 0.58 over denominator 3 end fraction equals 0.193

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