Question

Which is an equation in point-slope form for the given point and slope?

Point: (1, –7); Slope:

A. y-7=-⅔(x+1)
B. y-7=⅔(x-1)
C. y+7=⅔(x+1)
D. y+7=-⅔(x-1)

Answer 1

the GENERAL point-slope formula is \[y-y _{1}=m(x-x _{1})\]

Answer 2

You are given the point (1,-7) , but you have not specified what the slope, m, is. Do that now, please.

Answer 3

oh sorry
\[-\frac{ 2 }{ 3 }\]

Answer 4

basically, this is just a matter of subbing...
y - y1 = m(x - x1)
(1,-7)....x1 = 1 and y1 = -7
slope(m) = -2/3
now try subbing into the formula and what do you get ?

Answer 5

is it d?

Answer 6

let me start you off...
y - y1....so what is y1...it is -7.....so your problem now reads y - (-7)..
= m.......= 2/3.....(x - x1).......(x - 1)
so it now reads : y - (-7) = 2/3(x - 1)....but the negatives....so when simplified is :
y + 7 = 2/3(x - 1).....it is D

Answer 7

Oh

Answer 8

Ashley, it's really important that you show your work if you want meaningful feedback. Please don't respond with "Is it d?" That sounds as tho' y ou're guessing.

Answer 9

sorry

Answer 10

texaschick has done a great job of demonstrating what you could do to communicate your work to potential helpers. Thanks, t-c.

Answer 11

I was trying not to confuse her too much...I hope she understands the problem..

Answer 12

And what does Ashley herself think?

Answer 13

I do understand it now.

Answer 14

That's always good to hear....you just have to be sure and pay attention to the signs

Answer 15

Yeah

Answer 16

Thank you for helping