The equation of the line with slope $2$ passing through $(1,3)$ is:
A$2x - y + 1 = 0$
B$x - 2y + 5 = 0$
C$2x - y - 1 = 0$
D$2x + y - 5 = 0$
Answer & Solution
Correct answer: A. $2x - y + 1 = 0$
y − 3 = 2(x − 1) ⟹ y = 2x + 1 ⟹ 2x − y + 1 = 0.
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