Question

If (a,b) is the point of intersection of line 3x + 6y = 12 with Y-axis, then a+b=_____​

Answer 1

Answer:

I'm not sure but I think it's 2

Step-by-step explanation:

x=a=0 since it is on the y axis

3(0) + 6y = 12

y=2=b

therefore, a+b = 2

Answer 2

Concept Introduction:

For a point to be its solution the equation is satisfied both LHS and RHS.

Given: (a,b) is the point of intersection of line $3x + 6y = 12$ with Y-axis

To Find:

We have to find the value of, a+b.

Solution:

According to the problem,

If (a,b) is the point of intersection of line with Y axis then

x=a=$0$ and y=b

∴$0+6b=12$

⇒$b=2$

∴$a+b=0+2=2$

Final Answer:

The value of a+b is $2$.

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