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Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find. the value of p when q = 3 the value of q when p = 8 - Mathematics

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प्रश्न

Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find.

  1. the value of p when q = 3
  2. the value of q when p = 8
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उत्तर

Given, equation is p = 2q

If p = 2, then q = `p/2 = 2/2` = 1

If p = 4, then q = `p/2 = 4/2` = 2

If p = 6, then q = `p/2 = 6/2` = 3

If p = 8, then q = `p/2 = 8/2` = 4

Hence, table for the graph

p 2 4 6 8
q 1 2 3 4

  1. When q = 3, the value of p is 6.
  2. When p = 8, the value of q is 4.
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अध्याय 12: Introduct To Graphs - Exercise [पृष्ठ ३८४]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
अध्याय 12 Introduct To Graphs
Exercise | Q 56. | पृष्ठ ३८४

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