Posted: 2/21/2006 8:23:06 PM EDT
Write the equation of the line that passes through the given point and is parellel to the given line. Write the answer in slopeintercept form.
(3, 7), 5x  y = 10 Can anyone walk me through this one? 

Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
First solve for Y to make things easier on yourself...therefore
y= 5x 10 Then, you have to put the line in pointslope form, which is: y  y1 = m(x  x 1 ) Y1 = 7 and X1 = 3. Thus..... y  7 = m(x  3) Now, figure out the slope and solve for y and you're in like foreskin. 

CardCarrying Member Of The Wolf Ammo AntiDefamation League.
Proud Member Of Brothers Of The Steel Case. 
We begin by finding the slope of the line you must be parallel to:
5xy=10 y=105x y=5x10 so the slope is 5, crossing at (0,10) So, the equation you are looking for will be y=5x+A, where A needs to be solved for. Since you know the line crosses through (3,7), you substitute for x and y, and get 7=5(3)+A, so A=8 The equation of your line is Y=5X8. 


I don't change the sign of 5x when I move it to the other side of the = sign? I had y = 5  10. Why don't we change the signs? This is obviously where I am screwing myself up. 

Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
He changed all the signs at once. Notice the 10 went to 10.
I did it step by step in mine. 


If you had 5x  y = 10 for your original equation you can solve for it by subtracting y (which is the same as adding y) and subtract 10. This leaves y = 5x  10 

CardCarrying Member Of The Wolf Ammo AntiDefamation League.
Proud Member Of Brothers Of The Steel Case. 
y+1 to the slant to (3, 7), 5x  y = 10 then add 4+3 and you get a big pile of SHEOT!!


"Take me to the Brig. I want to see the "real Marines". "
Major General Chesty Puller, USMC 
OK, how do I confirm that is parellel? Just graph it, or is there a way to check it in linear equation format? I really appreciate the help folks! I think my brain is completely melted. 

Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
If the slope is the same, the line is parallel.


CardCarrying Member Of The Wolf Ammo AntiDefamation League.
Proud Member Of Brothers Of The Steel Case. 
They both have a slope of 5, so by definition, they are parallel.



Well DUH! Told you my brain was freaking fried!


Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
when you have that "y=5x+10" or whenever you end up w/ that "" in front of your unknown variable, just switch ALL the sights (take the opposite) or in mathimatical thought, multiply all the #s by a "1" golly, i miss simple math 

<font size=2>"I'm not stupid; y'all just retarded."</font id=s2>
CJ "Praise the Lord and pass the ammunition!" EAT THIS! <img src=/images/smilies/anim_pyro.gif border=0 align=middle> Oh, Yeah! 
get a TI83+ and graph it 

<font size=2>"I'm not stupid; y'all just retarded."</font id=s2>
CJ "Praise the Lord and pass the ammunition!" EAT THIS! <img src=/images/smilies/anim_pyro.gif border=0 align=middle> Oh, Yeah! 
Amen! 


OK, so did I do this one right? This is perpendicular, not parallel
Find the equation, in standard form, of the line perpendicular to 3x – 6y = 9 and passing through (2, 1). 3x – 6y = 9  6y = 3x + 9 6y/6 = 3x/6 + 9/6 y = 1/2x + 3 (y  y1) = m(x  x1) (y(1)) = (2)[x  (2)] y + 1 = 2x + 4 y + 1 – 1 = 2x + 4 – 1 y = 2x + 3 

Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
Ah, shit. Now you had to go perpendicular on us!
Assuming that the slope of a line perpendicular to a line of slope m is 1/m, then yes, it seems you got it right. I honestly don't remember the assumption, though.... ETA: Nope. The slope is 2. Negative reciprocal. Your answer should be y = 2x + 3 Neat little app: Link 


+1 

"I am in a world of shit"

Thanks again for all the great help fellas! This has definately been a taxing class. I'll start asking more questions from now on  perhaps I can grasp some of this nonsense, as y'all explain it differently and it seems to make sense.
I tip one to your efforts in my appreciation 

Well the day's just not complete without seeing some guy get cornholed by a kangaroo while wearing a cream pie on his head... Aimless
Tai Gan Jo Ju You wouldn't want to ban guns if one ever saved your daughter's life. 
Wait till you get to calculus!
Integration by parts is SO much fun! 


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