Question

Write the equation of a line in POINT SLOPE FORM that has a slope of -3/4 and passes through the point (4,5)

Answer 1

plug in to the formula: y - y1 = m(x - x1)
where m is your slope, and (x1, y1) is the point the line passes through.

Answer 2

dpainc gave the approach.

Answer 3

point slope form...do you know what that is kaytree?

Answer 4

like the formula?

Answer 5

@karatechopper i learned some of it but not all

Answer 6

@Kaytree16 ok well lets walk you through this if you don't know, is that fine?

Answer 7

@karatechopper , thanks(:

Answer 8

answers won't get you anywhere, UNDERSTANDING gets you everywhere

Answer 9

@luisrock2008 ^

Answer 10

alrighty kaytree! lets begin with figuring out what point slope form is.
the point slope form formula is y-y1=m(x-x1)

Answer 11

do you know what the y1 and x1 are?

Answer 12

now now please do not be greedy and mean:) we want a clean enviorment:D

Answer 13

@Kaytree16 ^^ look at what i said please:)

Answer 14

@karatechopper , yes

Answer 15

alright good! can i know what grade you are in so that i can make my explanation better?

Answer 16

Sophmore

Answer 17

ok well im a 7th grader so please excuse me if i sound childish:)

Answer 18

lol, your a smart 7th Grader .

Answer 19

thank u!

Answer 20

ok well getting back to this problem..

Answer 21

first things first, do you know what your slope is?

Answer 22

no

Answer 23

it says so right up there in your question tho...

Answer 24

Oh, sorry -3/4

Answer 25

:) much better;) ok so do you know which variable the slope takes the place of in that formula?

Answer 26

... (4,5) ?

Answer 27

lol nope! the slope is always the variable "m". therefore you would put the -3/4 in the place of the m in the point slope form equation

Answer 28

ohh , Okay lol

Answer 29

why was my answer deleted?

Answer 30

haha yea:P ok so to get a better inderstanding lets rewrite the point slope form formula and instead of placing an m there, we will place the actual slope for this problem!

Answer 31

@FoolForMath deleted it:)

Answer 32

why? I gave her the right answer

Answer 33

we will see if it is correct when me and @Kaytree16 r done solving it

Answer 34

^ @karatechopper thank you(:

Answer 35

No problem!

Answer 36

back to the problem tho..can you rewrite the point slope form for me @Kaytree16

Answer 37

@luisrock2008: Your answer has almost no explanation with it so it was not helping the OP. Besides that your answer was *incorrect*.

Answer 38

whats OP?

Answer 39

OP=Original poster

Answer 40

ahh

Answer 41

@FoolForMath can you just make him stop commenting .hes not helping .

Answer 42

m=-3/4 ?

Answer 43

No but I used the equation @dpalnc gave us. I dein't even get a medal for trying. I also din't know we needed to show work

Answer 44

He/She is already warned once. If he continue to do this, I will have to suspend him/her.

Answer 45

yes, now write it in the point slope form formula

Answer 46

... How

Answer 47

im confused again

Answer 48

@FoolForMath thank you

Answer 49

by doing this!
y-y1=m(x-x1)
y-y1=-3/4(x-x1)

Answer 50

ahhhh, okay

Answer 51

yep! now it comes to that one point of (4,5)

Answer 52

Okay

Answer 53

ok so you told me you know what the x1 and y1 is. so this should be easy for you to plug the (4,5) in the equation if you r a sophmore;)

Answer 54

i said i know what they are not how to .

Answer 55

yes yes, but that should help u! x1 is the x coordinate and y1 is the y coordinate
therefore you just put the x value in for the x and the y value in for the y

Answer 56

ahhhhhh i see

Answer 57

yep so would u please put those values in with out new formula?
y-y1=-3/4(x-x1)

Answer 58

5-5=-3/4(4-4) ?

Answer 59

u only plug it in for the x1 and y1 not the x and y

Answer 60

ohh, /:

Answer 61

yea i know math can get confusing! dont stress!

Answer 62

imm not stressed just confused again /:

Answer 63

where did you go ?/:

Answer 64

y-51=-3/4(x-41)????

Answer 65

@FoolForMath could you help?

Answer 66

easiest way is to plug in the numbers on this y-y1=m(x-x1)

Answer 67

i did .

Answer 68

here is step 1: y-5= -3/4 (x - 4)

Answer 69

step 2 is to multiply the slope by the numbers in the bracket

y-5 = -3/4x -3

Answer 70

then you need to get rid of 5 so you add 5 on both sides therefore. -5+5 = 0 and -3+5=2

Answer 71

answer is y = -3/4 +2

Answer 72

thank you .

Answer 73

can i have a medal.

Answer 74

idk how