Question
Draw the graph of the following linear equations in two variables: $x + y = 4$
✓
Answer
We have, $x + y = 4$
$\Rightarrow x = 4 - y ...(i)$
Putting $y = 0$,
we get $x = 4 - 0 = 4$
Putting $y = 3,$
we get $x = 4 - 3 = 1$
Thus, we have the following table giving two points on the line represented by the equation $x + y = 4$:
Graph of the equation $x + y = 4$:
$\Rightarrow x = 4 - y ...(i)$
Putting $y = 0$,
we get $x = 4 - 0 = 4$
Putting $y = 3,$
we get $x = 4 - 3 = 1$
Thus, we have the following table giving two points on the line represented by the equation $x + y = 4$:
Graph of the equation $x + y = 4$:
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