Question

If (a+4, 3) lies on y axis then find a​

Answer 1

Answer:

$\sf \: a + 4 = 3 \\ \\ \sf \: a = 3 - 4 \\ \\ \sf a = - 1$

Hence a = -1

Answer 2

If a point lies on y axis then the x coordinate of the point will be zero
Therefore,
a+4= 0
a = -4

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