Write the correct answer in the following: If a linear equation h… - Vidyadip

MCQ

Write the correct answer in the following:
If a linear equation has solutions $(-2, 2), (0, 0)$ and $(2, -2)$, then it is of the form,

A
$y – x = 0$
✓
$x + y = 0$
C
$-2x + y = 0$
D
$-x + 2y = 0$

✓

Answer

Correct option: B.

$x + y = 0$

Thinking Process,
$i.$Firstly, consider a linear equation $ax + by + c = 0.$
$ii.$Secondly, substitute all points one by one and get three different equations.
$iii.$Further, simplify the three equations and then substitute the values of $a, b$ and $c$ in the considered equation.

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