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Straight Lines — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsStraight Lines1 Mark
MCQ
Find the equation of line parallel to $x-$axis and passing through $(3, 4):$
  • A
    $x = 3$
  • B
    $x = 4$
  • ✓
    $y = 4$
  • D
    $y = 3$
✓

Answer

Correct option: C.
$y = 4$
Let general equation of line be $y = m \times x + c.$
Since line is parallel to $x-$axis so, $m = 0.$
$\Rightarrow y = c$
$\Rightarrow y = 4$ by substituting the point $(3, 4).$

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