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4. Linear Equations in Two Variables
medium
Write four solutions for each of the following equations
$4 x-3 y=24$
Option A
Option B
Option C
Option D
Solution
$4 x-3 y=24$
$\therefore 4 x-24=3 y$
$\therefore y=\frac{4 x-24}{3}$
Taking $x=0,$ we get $y=\frac{4(0)-24}{3}=\frac{-24}{3}=-8$
So, $(0,-8)$ is a solution of the given equation.
Taking $x=3,$ we get
$y=\frac{4(3)-24}{3}=\frac{-12}{3}=-4$
So, $(3,-4)$ is a solution of the given
equation. Taking $x=6,$ we get $y=\frac{4(6)-24}{3}=\frac{0}{3}=0$
So, $(6,0)$ is a solution of the given equation. Taking $x=9,$ we get $y=\frac{4(9)-24}{3}=\frac{12}{3}=4$
So, $(9,4)$ is a solution of the given equation.
So, four of the infinitely many solutions
of the given equation are
$(0,-8),(3,-4),(6,0)$ and $(9,4)$
Standard 9
Mathematics