Question

If the point (3, 2) lies on the graph of the equation 5x + ay = 19, then find the value of a. *​

Answer 1

Given that:

✴️ Given eqⁿ → 5x + ay = 19

✴️ The point (3,2) lies on the graph of the equation 5x + ay = 19

To calculate:

✴️ The value of " a "

Solution:

✴️ 2 is the value of a

Procedure:

✴️ To solve this question we have to put the value of x and y as respect to the coordinates of the given equation. Then we have to further solve.

Points to remember:

• + + = +
• - - = +
• + - = -
• - + = -
• - = +
• + = -
• × = ÷
• ÷ = ×

Required solution:

»»» 5x + ay = 19

»»» 5(3) + a(2) = 19

»»» 15 + 2a = 19

»»» 2a = 19 - 15

»»» 2a = 4

»»» a = 4/2

»»» a = 2

• Henceforth, value of a = 2! $\:$