Point help: How does the point-slope form of a line equation, y = y1 + b(x - x1), compare with the slope-intercept form, y = a + bx? - Help.com

How does the point-slope form of a line equation, y = y1 + b(x - x1), compare with the slope-intercept form, y = a + bx?

Does y1 equal a?

2. Are point-slope equations the same for different points? If so, when?

This open post was written 1 year, 2 months ago | V/U/S: 494, 4, 2 | Edit Post | Leave a reply | Report Post


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Since writing this post alt34 may have helped people, but has not within the last 4 days. alt34 is a verified member, has been around for 1 year, 3 months and has 18 posts and 20 replies to their name.

Post Tags (9)

Linear equation, slope, Comparison, Equation, form, Point, Line, equality, Intercept (How Tags Affect Reciprocity)

Replies (4)

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alt34 edited this post 1 year, 2 months ago. Read the previous text »

1. How does the point-slope form of a line equation, y = y1 + b(x - x1), compare with the slope-intercept form, y = a + bx? Does y1 equal a?

2. Are point-slope equations the same for different points? If so, when?

Help me with: Jim Hall, Magic meeting.
R.A.M offline Verified User (1 year, 2 months) Long Term User Shouts: 1 #
An Unknown Location | 1 year, 2 months ago (12 minutes after post)

You kida got it…
y1 =a
and x1 dosent actually effect the equation much…
Thing is have a feeling your equation is a bit off…
check this out..
http://www.purplemath.com/modules/str…
and
http://www.purplemath.com/modules/str…

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alt34 offline Verified User (1 year, 3 months) Long Term User Shouts: 0 #
An Unknown Location | 1 year, 2 months ago (22 minutes after post)

yea idk, thats what my teacher taught us so thats what im supposed to use. and every where I look online its using the equations you gave me so idk, maybe my teachers on crack.

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Help me with: Jim Hall, Magic meeting.
captain_hideou offline Verified User (1 year, 2 months) Long Term User Shouts: 0 #
An Unknown Location | 1 year, 2 months ago (2 hours, 51 minutes after post)

a = y1 - bx1

b x and y are all constant

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