Question

the point (−2 + a, 5) lies on Y-axis, find the value of a​

Answer 1



The point whose ordinate is 4 and which lies on y-axis is

A

(4, 0)

B

(0, 4)

C

(1, 4)

D

(4, 2)

Answer

Correct option is

B

(0, 4)

AnypointwhichlieontheY−axishasthecoordinates(0,y)whenycantakeanyvalue.Herey=+4units.∴Thecoordinatesofthepointis(0,4).ans−OptionB

Answer 2

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since,the point lies on y axis

value of abcissa(x-coordinate)=0

so, -2+a=0

》 a=2

value of a is 2