Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

Login

Username

Password

Not registered yet?

Post a reply

Go back

Write your message and submit
:) :| :( :D :o ;) :/ :P :lol: :mad: :rolleyes: :cool: | :dizzy :eek :kiss :roflol :rolleyes :shame :down :up :touched :sleep :wave :swear :tongue :what :faint :dunno
Options

Go back

Topic review (newest first)

krassi_holmz
2006-02-27 20:07:14

or y=(2x+85)/5?

ganesh
2006-02-27 18:24:56

I guess the question is finding the equation of a straight line whose slope is 2/5 and which passes through the point (-20, 9).

The equation of a straight line passing through a given point (x1, y1) and with a given slope, m, is

y - y1 = m(x - x1).

In the given problem, x1 = -20, y1=9 and m=2/5.
Therefore, the equation of the straight line is

y-9 = 2/5[(x+20)]
5y-45 = 2x + 40
5y - 2x = 85
2x - 5y + 85 = 0 is the required equation. smile

MathsIsFun
2006-02-27 18:18:08

What was the actual question? How to simplify y-9=2/5(x+20 ) ?

x1000uf
2006-02-27 12:56:36

i dont know how to do it with factions someone help??!!!!

im gonna fail becuase i dont know how to do it

y-9=2/5(x+20   faintdunnofaint

Board footer

Powered by FluxBB