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Question

y=3x
  1. The line passes through (0,0) and m=3
  2. The line passes through (1,3) and m=3
  3. The line passes through (0,0) and m=3
  4. None of these

A
The line passes through (0,0) and m=3
B
The line passes through (0,0) and m=3
C
None of these
D
The line passes through (1,3) and m=3
Solution
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The correct option is C The line passes through (0,0) and m=3
Thegivenequationisy=3x.Herexistheindependentvariable.Weassignany4valuesofxandobtainthecorrespondingvaluesofy.x=3y=9,x=1y=3,x=3y=9.x=4y=12Sotheorderedpairesofvaluesof(x,y)=(3,9),(1,3),(3,9)&(4,12).Nowweplotthemonagraph.Thelinepassesthrough(0,0)andm=3.AnsOptionC.
201575_197737_ans.png

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