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Straight Lines — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsStraight Lines1 Mark
MCQ
Find slope of line passing through origin and $(3, 6):$
  • ✓
    $2$
  • B
    $​​3$
  • C
    $\frac{1}{3}$
  • D
    $\frac{1}{2}$
✓

Answer

Correct option: A.
$2$
We know, slope of line joining two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $\frac{(\text{y}_{2}-\text{y}_{1})}{(\text{x}_{2}-\text{x}_{1})}$
So, slope of line joining $(0, 0)$ and $(3, 6)$ is $\frac{(6-0)}{(3-0)} = \frac{6}{3} = 2$

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