54.4k views
5 votes
Please help!!! I need help finding the answer to this!

Please help!!! I need help finding the answer to this!-example-1

1 Answer

5 votes

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

User Chiducaf
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories