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In this video, let's find out how to find the perpendicular distance of a point from a line, for example,

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over here you have a line, let the equation of this line be exploited by policy is equal to zero.

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All right.

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Now, over here you have a point B and let the coordinates of point PBX one, comma one.

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Now, over here we are asked to find the perpendicular distance that is.

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This is the distance that we need to find out.

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Now, this can be found out using the formula.

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This is equal to a X1 plus B Wyvern policy divided by route of A squared plus B square.

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Now, what is it that we are doing over here?

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We are substituting X1 Wyvern into this equation over here.

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So that's why over here instead of X we have X1 over here and instead of why we have Wyvern over here.

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Right.

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For example, you want to find the distance of two three from.

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The line or X plus three, Y minus 10 is equal to zero.

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So can you do that?

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Yes, you just need to substitute two three over here.

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So you get over into two, plus three into three, minus 10.

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That's your numerator divided by square root of four squared plus three square.

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That's equal to five.

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Right.

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Your answer is eight plus nine.

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That's seventeen minus 10.

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That's seven.

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So you get your answer seven by five.

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That would be this distance over here at this angle is 90 degrees.