Maths
Grade-10
Easy

Question

Find the average rate of change of the function p left parenthesis x right parenthesis equals square root of 10 x end root semicolon space of 1em 0.5 less or equal than x less or equal than 1.5

  1. 1.44
  2. 0.64
  3. 1.64
  4. 2.64

hintHint:

To find the average rate divide the range by domain.

The correct answer is: 1.64


    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 cell p left parenthesis 1.5 right parenthesis equals square root of 10 cross times 1.5 end root equals square root of 15 almost equal to 3.87 end cell row cell p left parenthesis 0.5 right parenthesis equals square root of 10 cross times 0.5 end root equals square root of 5 almost equal to 2.23 end cell end table
    Average rate equals fraction numerator 3.87 minus 2.23 over denominator 1.5 minus 0.5 end fraction equals fraction numerator 1.64 over denominator 1 end fraction equals 1.64

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