Answer:
option B:
√5
Explanation:
distance from the point to the line is:
d = | ax1 + by1 + c | / √a² + b²
the given point is:
x1, y1 = 1, 3
equation of the line is:
ax1 + by1 + c = 0
the given line is:
2x - y - 4 = 0
i.e.
a = 2,
b = -1, and
c = -4
thus,
d = | 2(1) - 1(3) - 4 | / √ 2² + (-1)²
= | 2 - 3 - 4| / √ 4 + 1
= | -1 - 4 | / √5
= |-5| / √5
= 5/√5
= √5
thus, option B is the correct answer