ok so (1,-1)m=2
y+1=2x+2
-1 -1
so y=2x +1 how is it y=2x-3 ?!?!
2006-10-24 01:59:53 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
using the point slope formula:
y - y1 = m(x -x1)
thus
y - (-1) =2x -2 (minus 2 not plus 2)
solves to
y= 2x-3
Hope this helps, and don't worry, I still make "stupid math errors"
2006-10-24 02:13:03 · answer #1 · answered by Ken B 3 · 0⤊ 0⤋
This comes from this equation:
Y= M*X+B
-1=2*1+B
-1=2+B
-3=B
So your standard slope equation is Y=2X-3
2006-10-24 09:14:32 · answer #2 · answered by where's waldo?? 2 · 0⤊ 0⤋
y - y1 = m(x - x1)
y + 1 = 2(x - 1) You had + , not -
y + 1 = 2x - 2
y = 2x - 3
2006-10-24 09:05:40 · answer #3 · answered by dmb 5 · 1⤊ 0⤋
no it is y=2x+3
2006-10-24 10:02:38 · answer #4 · answered by Chanti® 3 · 0⤊ 0⤋
?
2006-10-24 09:04:03 · answer #5 · answered by Kmart 2 · 0⤊ 1⤋