Posted by Chico on Thursday, March 26, 2009 at 6:31pm.
The following problems are in slope,point slope, and slope intercept forms of a line.
Could you check these thanks.
Find the slope intercept form of a line that passes through these two points (4,4) and (2,1)
Answer: y= 1/2x2
Find the slope intercept form of a line that is parallel to the line created in problem #1 and passes through the point ( 2,6)
Answer: y= 1/2x+4
Find the slope intercept form of a line that is perpendicular to the line created in problem #1 and passes through the point (1,3). What can you say about the relationship of this line and the line created in problem #2.
Answer: y= 1/2x+1/1/2
My response: I can say that is I used the same slope which is 1/2x

Math/Algebra do u know how to do slope intercept?  Damon, Thursday, March 26, 2009 at 6:40pm
two points (4,4) and (2,1)
m = slope = (Y1Y1)/(X2X1)
= (14)/(2+4) = 3/6 = 1/2
then put either point in:
y = (1/2) x + b
1 = (1/2) 2 + b
1 = 1 + b
b = 2
so
y = (1/2) x + 2
I think you have a sign error in your answer for b
if parallel, same slope = (1/2)
y = (1/2) x + b
now the point in
6 = (1/2)(2) + b
6 = 1 + b
b = 5
so
y = (1/2) x + 5
then perpendicular
m = 1/(1/2) = 2
s
y = 2 x + b
3 = 2(1) + b
b = 1
so
y = 2 x + 1

Math/Algebra do u know how to do slope intercept?  Damon, Thursday, March 26, 2009 at 6:41pm
By the way, you can always check the answers by seeing if all the points fit the line you come up with.

Damon thank you ()()  Alex, Thursday, March 26, 2009 at 6:47pm
Thank you very much you really Helped!

Math/Algebra do u know how to do slope intercept?  Alex, Thursday, March 26, 2009 at 6:52pm
I had the same homework to not like this but now I know how to do it thanks chico for posting a similar problem and thanks damon

Math/Algebra do u know how to do slope intercept?  sydney, Tuesday, March 23, 2010 at 5:39pm
yo sup peops 2x  is y


Math/Algebra do u know how to do savle a algebra  inity, Monday, March 14, 2011 at 10:18pm
by  the two numbers and it gives you x or y or w

Math/Algebra do u know how to do slope intercept?  JASMINE, Tuesday, April 12, 2011 at 4:06pm
WHAT THE HECK IS ALLL THIS MESSS

Math/Algebra do u know how to do slope intercept?  ROCESLLLE, Tuesday, April 12, 2011 at 4:07pm
HOW WILL U DO THE MESS I DON'T UNDERSTNAD IT!!!!!!!!! IGUESS
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