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Find the vertical distance between point, and quation?

  • Thread starter nukeman
  • Start date
  • #1
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Homework Statement



What is the vertical distance between the point A(−2,−3) and the line 2x+5y=3.

Homework Equations





The Attempt at a Solution



Here is what I did: I know its wrong.

First, changed the equation into proper form:

y = 2/5x - 3/5

Plotted the equation....

Then, I drew in the point (-2,-3). Then drew line from point, vertically to the line, just as a graphical representation.

so from the line, x = -2

So, If x = -2, then y would equal -1.4

So, then I put this into the distance formula:

[itex]\sqrt{}(-2 - (-2))^2 + (-1.4 - (-3))^2[/itex]

Which gave me 1.6

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
LCKurtz
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Homework Helper
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Homework Statement



What is the vertical distance between the point A(−2,−3) and the line 2x+5y=3.


Here is what I did: I know its wrong.

First, changed the equation into proper form:

y = 2/5x - 3/5
Check your arithmetic right there.
 
  • #3
655
0
Oh....

Is this correct then?

y = -2/5x + 3/5?
 

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