Question

What is the equation in point-slope form of the line passing through (2, 5) and (−1, 8)?

y+5=1(x+2)
y+8=-1(x-1)
y-5=-1(x-2)
y-8=1(x-2)

Answer 1

@welshfella

Answer 2

use the formula
m=y2-y1/x2-1
x1, y1 x2,y2
(2,5) (-1x,8)

Answer 3

y+5=1(x+2)/.... not sure

Answer 4

how did you get that?

Answer 5

First, find the slope: = m=y2-y1/x2-x1
=8-5/2+1
3/3
=1


Use either point: (2,5)
Remember the form: y - y1 = m ( x - x1)
Substitute: y - 5 = 1 ( x - 2)
y - 5 = (x -2) Ans.

Answer 6

First find the slope (m) by perforing the calculation described by Andre

Answer 7

the slope is 1

Answer 8

yea
Andres has got it

Answer 9

oh alright

Answer 10

thank you andres19

Answer 11

No hold one
m = (8-5) / (-1-2) = 3/-3 = -1

slope is -1

Answer 12

I already turned it in and got it wrong

Answer 13

oh sorry
correct was y - 5 = -1(x - 2)

do you understand how it was done. Thats the main thing.

Answer 14

yes i do now, andres had 3/3 instead of 3/-3

Answer 15

yea
(x1,y1) is (2,5) and (x2,y2) is (-1,8)

so the slope is (y2-y1) / (x2-x1) = (8-5) / (-1-2) = 3/-3

Answer 16

can you tell me if this is right?
Wendy played her favorite video game for 8 hours last week. Today, Wendy's parents restricted her to 6 additional hours each week for the next 9 weeks. Create the function, f(x), that models Wendy's total video game time, and explain what each number in the situation represents graphically, using complete sentences.
i got : f(x) = 6x+8
f(x) = # hours x = #'d weeks

Answer 17

Welshfella he is right and sorry i forget the the negative

Answer 18

its ok

Answer 19

f(x) is correct