y intercept

hmwin

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I am trying to solve the following problem
A line contains the point (1,3) and has the same y intercept as y-5+2(x-1). What would the y intercept be here?
 

Subhotosh Khan

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hmwin said:
I am trying to solve the following problem
A line contains the point (1,3) and has the same y intercept as y-5+2(x-1). What would the y intercept be here?
Check your post for correctness - then -

Please show your work, indicating exactly where you are stuck - so that we know where to begin to help you.
 

hmwin

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Well, I used the formula y-y1+m(x-x1) with the ones being below the line.

So, y-3+m(x-1)...but I need to know the "m" or y intercept.
 

Subhotosh Khan

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hmwin said:
Well, I used the formula y-y1+m(x-x1) with the ones being below the line.

That is not an equation of a line - be a little more careful

So, y-3+m(x-1)...but I need to know the "m" or y intercept.

Again the same mistake....
Just simplify your equation - then write it in the form of:

y = mx + b

then 'b' is the y-intercept.

or

you can solve for 'y' at x = 0 --- that value of y will be the y-intercept.
 

hmwin

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First of all, I looked back at my first post and may have made a mistake.

The formula was y-5=2(x-1)

Does this make a difference?

and would y be 2 ?
 

Subhotosh Khan

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hmwin said:
First of all, I looked back at my first post and may have made a mistake.

The formula was y-5=2(x-1)

Does this make a difference?

and would y be 2 ?No - did you read my response?

Please show your work
 

hmwin

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Yes, I did...and I am confused!
 

hmwin

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Do I use the points (1,3) with 3 being the b?
 

Denis

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hmwin said:
Do I use the points (1,3) with 3 being the b?
Hmmm...may as well stop here hmwin; you obviously need classroom help.
 
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