Question

10. State with reason whether the point
(3,-2) will lie on the graph of
the equation 5 m-3 n = -21.​

Answer 1

Answer:

No.

Step-by-step explanation:

If a point is lying on the graph of an equation, it will satisfy that equation.

i.e. $5m - 3n = -21$ must be true for $(m, n) = (3, -2)$.

$5(3) - 3(-2) = -21$

$15 + 6 = - 21$

$21 = -21$

Clearly this is not true.

Therefore (3, -2) will not lie on 5m - 3n = - 21.

Any corrections or suggestions for improvement are welcome :)