Question

If a , 4 lies on the graph x + 2 y = 6 then a is equal to

Answer 1

(A,4) is a point on the line x+2y=6

Substituting Value y=4 ,

x+8=6

x=-2

Thus A = -2

Answer 2

Given,

a , 4 lies on the graph x + 2 y = 6

To Find,

a is equal to =?

Solution,

We can solve the question as follows:
It is given that the point (a,4) lies on the graph x + 2y = 6. This means that the point will satisfy the given equation.

Therefore,

$(a, 4) = (x,y)$

⇒$x = a, y = 4$

Substituting the values in the equation of the graph,

$x + 2y = 6$

$a + 2*4 = 6$

$a + 8 = 6$

$a = 6 - 8$

$a = -2$

Hence, the value of a is equal to -2.