Make y=mx+b with y+1/2 = -1/3 (x+ 1/2)

taragbeh

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This is hard but please let me know if I am on the rght track and if my answer is correct

y+1/2 = -1/3 (x+ 1/2)

y + 1/2 = -1/3x -2/6 (multiply and remove th braccket)

y = 1/3x - 2/6 - 1/2 (subtract 1/2 from both sides)

y= 1/3x - 5/6, therefore Y=mx+b
 
taragbeh said:
This is hard but please let me know if I am on the rght track and if my answer is correct
What was the actual question? (You begin your post with a line equation, and then manipulate it, but was that equation the beginning of the exercise? What were the instructions?)

taragbeh said:
...therefore Y=mx+b
How does this relate? What were you supposed to prove, that you ended up with the above "therefore" statement?

Please be complete. Thank you! :D

Eliz.
 
Re:

stapel said:
What was the actual question? ...What were the instructions?

The question is y + 1/2 = -1/3(x + 1/2)

Solving a variable so that y=mx+b
 
Re: Make y=mx+b

tkhunny said:
taragbeh said:
y+1/2 = -1/3 (x+ 1/2)

y + 1/2 = -1/3x -2/6
You went astray right off. (1/3)(1/2) = 1/6


Can you show me the steps from the beginning to the end. this one is abig confusing and tricky. Thanks
 
Re: Make y=mx+b

\(\displaystyle y + \frac{1}{2} = -\frac{1}{3} \left(x + \frac{1}{2} \right)\)

distribute the -1/3 on the right side ...

\(\displaystyle y + \frac{1}{2} = -\frac{1}{3}x - \frac{1}{6}\)

subtract 1/2 from both sides ...

\(\displaystyle y = -\frac{1}{3}x - \frac{2}{3}\)
 
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