Question

If the point (3, 5) lies on the graph of the equation 3y = ax + 9, then the value of a is :

• A. 2

Answer 1

The correct option is A 2
If the point lies on the graph then it satisfies the given equation,
Putting x = 3, y = 5 in the given equation,
$3\times 5=a\times 3+9$
$\Rightarrow$ 3a + 9 = 15
$\therefore$ a = 2