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  • Equation of the line passing through (1, 2) and parallel to the line y = 3x – 1 is A. y + 2 = x + 1 B. y + 2 = 3 (x + 1) C. y – 2 = 3 (x – 1) D. y – 2 = x – 1

Equation of the line passing through (1, 2) and parallel to the line y = 3x – 1 is
A. y + 2 = x + 1
B. y + 2 = 3 (x + 1)
C. y – 2 = 3 (x – 1)
D. y – 2 = x – 1

Answers (1)

Given equation of the line is y=3x-1

  Now we find the slope of the above equation by comparing it with y=mx+b form 

 So m=3     

 Now, we find the equation of line passing through the point (1,2) and parallel to the given line 

with slope=3 

  y-y1=m(x-x1)  

    y-2=3(x-1) 

Hence, the correct option is (c)

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infoexpert22

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