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Which of the following points lies on the line y=2x+3 ?

(2,8) (3,9) (4,12) (5, 15)

(b) (3,9)

Explanation:

Point (2,8) does not satisfy the equation

*y*= 2

*x*+ 3. (∵

*y*= 2 × 2 + 8 = 12

Point (3,9) satisfy the equation

*y*= 2

*x*+ 3. (∵

*y*=2 × 3 + 3 = 9)

Point (4,12) does not satisfy the equation

*y*= 2

*x*+ 3. (∵

*y*= 2 × 4 + 3 = 11

Point (5,15) does not satisfy the equation

*y*= 2

*x*+3. (∵

*y*= 2 × 5 + 3 = 13

Hence, the point (3,9) lies on the line

*y*= 2

*x*+3.

Regards

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