Question

choose the point-slope form of the equation below that represents the line that passes through the point (-1,6) and has a slope of -3
A.y-6=-3x-3
B.y-6=-3(x+1)
c.y=-3x+3
d.3x+y=3
I think it's between A-C i'm not sure about d

Answer 1

choose the `point slope form`
what's the point slope form of a line ? :=))

Answer 2

how do i get it?

Answer 3

oh well that's the equation
`slope intercept ` form is \[\large\rm y=mx+b\]where m is slope and b is y-intercept
and point slope form is \[\large\rm y-y_1=m(x-x_1)\]
where m represent the slope
and (x_1,y_1) the point where line passses though :))

Answer 4

ok I just didn't understand so how do I get the answer.

Answer 5

just plug in numbers
`equation that has slope of -3 and passes through the poin t( -1 ,6)`
replace m with -3
and (x_1 ,y_1) point with (-1,6)

Answer 6

I really don't understand it's hard for me can I get a direct answer and can you show the work so I can see how you got it It will help I will understand more like that.

Answer 7

there is no direct answer.
which equation is **`point slope form` in the answer choices ??

Answer 8

point slope form is \[\large\rm y-y_1=m(x-x_1)\]

Answer 9

A

Answer 10

I really don't understand

Answer 11

i don't know what part you didn't understand
just forget about the answer

this is the formula for point slope form \[\large\rm y-y_1=m(x-x_1)\]
where m is slope and passes through the (x_1 ,y_1)
read your question `passes through the point (-1,6) and has a slope of -3 `
slope = -3 so substitute m for -3
and passes through the (-1,6) so substitute (x_1,y_1) for (-1,6)
in this order pair first represent x-coordinate
so x_1 = -1
and y_1 = 6

Answer 12

there is only one possible answer
which answer choices equation is in point slope form ??

Answer 13

D?

Answer 14

here is an example
` line passes through the point (3,4) and has a slope of 7 `
i will replace m with 7
and x_1 with 3 and y_1 with 4 \[\rm y-4 =7(x-3)\]

Answer 15

C?

Answer 16

don't make a guess
what part you don't understand ????

Answer 17

why C ???

Answer 18

I don't know how to plug in the numbers and solve it. I thought C because after your example it seemed more similar

Answer 19

this is my example \[\rm y-4 =7(x-3)\]
and this is C \[y=-3x+3\]
both are similar ?

Answer 20

as i mentioned above
y=mx+b is `slope intercept ` form not point slope

Answer 21

plug means just replace variables with numbers
just like i did in that example

Answer 22

Ok so it's B? because both are showing an equation to find X and Y

Answer 23

formula for point slope form
\[\large\rm y-y_1=m(x-x_1)\]
option B \[\large y-6=-3(x+1)\]

Answer 24

that's the ONLY option in `point slope ` form

Answer 25

Yeah thanks so much sorry for the hard time.

Answer 26

my pleasure :=))
just practice it's not that hard
that's the easy topic in math :=))