Question

Point -Slope Form
y-b=m(x-a)
(x,y)(a,b)
Question (5,5) (3,2)

Answer 1

So what is the question?

Answer 2

how do you find the slope and write the equation in point-slope form.

Answer 3

Texas can probably explain this process in great detail :P

Answer 4

ok thanks

Answer 5

find the slope using the slope form :
slope(m) = (y2 - y1) / (x2 - x1)
(5,5) x1 = 5 and y1 = 5
(3,2) x2 = 3 and y2 = 2
now we sub
slope(m) = (2 - 5) / (3 - 5)
slope (m) = -3/-2
slope(m) = 3/2

you with me so far ?

Answer 6

any questions so far ?

Answer 7

thanks you so much :)

Answer 8

now we need to put it in point slope form....correct ?

Answer 9

yes

Answer 10

point slope form = y - y1 = m(x - x1)
slope(m) = 3/2
you can choose either of your points....(5,5) x1 = 5 and y1 = 5
now we sub
y - 5 = 3/2(x - 5) ==> point slope form

Answer 11

any questions ?

Answer 12

i still don't understand.

Answer 13

the slope or the point slope form ?

Answer 14

both

Answer 15

these are just formulas you will be using...

slope(m) : (y2 - y1) / (x2 - x1)
slope intercept form : y = mx + b
point slope form : y - y1 = m(x - x1)

you will use your 2 set of points ...(x1,y1) and (x2,y2).
Once you have your slope(m), just sub that , along with 1 set of points, into the point slope form. It is basically all just a matter of subbing stuff in.

Answer 16

what do we put in (y2 - y1) / (x2 - x1)

Answer 17

that is the formula to find the slope. You do that first.

Answer 18

because you need the slope to be able to sub it into the point slope formula

Answer 19

oh....I see what you are saying.....
we use the set of points and put them into the slope formula...
first set (x1,y1) and second set (x2,y2)

Answer 20

what number go in those number