Question

Need help!

Answer 1

@anonmoose
Given the points A(–1, 2) and B(7, -2), find the coordinates of the point P that splits segment AB in the ratio 1:3

Answer 2

@party_girl

Answer 3

answer choices?

Answer 4

no, I need to show my work

Answer 5

@party_girl

Answer 6

@Somy can you help?

Answer 7

@annabelle15

Answer 8

hold on ...

Answer 9

ok

Answer 10

@annabelle15 please i need help

Answer 11

@annabelle15

Answer 12

i dont know sadly hang on im still working

Answer 13

Ok

Answer 14

@mathstudent55 please help

Answer 15

@mathmale
@matheducatorMcG

Answer 16

"Given the points A(–1, 2) and B(7, -2), find the coordinates of the point P that splits segment AB in the ratio 1 ... " In what ratio? Have you drawn a diagram?

Answer 17

@mathmale in the ratio 1:3
no I haven't drawn a diagram, I odnt know how

Answer 18

@Study312 @mathstudent55 @BabeBerry can anyone help?

Answer 19

can you plot the points on a graph and show us?

Answer 20

ok

Answer 21

@Study312

Answer 22

I was thinking more like

Answer 23

that is what I put

Answer 24

Yes, I just made it bigger

Answer 25

ok, now whats next?

Answer 26

um....well.......let me look this up. I have actually never really done this before......

Answer 27

ok

Answer 28

maybe this will help https://www.khanacademy.org/math/geometry/analytic-geometry-topic/cc-distances-between-points/v/ratios-of-distances-between-colinear-points

Answer 29

ok

Answer 30

@mathmale in the ratio 1
no I haven't drawn a diagram, I odnt know how

Still unsure of what the ratio is. Please try again to share it.

Or, I could choose my own ratio to use as an example.

Answer 31

Draw the line segment connecting points A(-1,2) and B(7,-2).

See: http://assets.openstudy.com/updates/attachments/56afcccde4b01f7ec44dab1a-mely1014-1454366354319-openstudy.png

Let's suppose we want to subdivide line AB in the ratio of 1 to 3.

Add 1 and 3 together, obtaining 4. Then, the first line segment of the subdivision has length (1/4) of the length of line segment AB.

Are you able to calculate the length of this line segment? Call the segment AC.

Answer 32

In the horiz direction, the distance from A(-1,2) to B(7,-2) is 8.
So, (1/4) of 8 is 2. That's the x-coordinate of point C.

In the vert. direction. the dist. from A to be is 4. (1/4) of -4 is -1. Point A has coordinates A(-1,2). Subtract that 1 from the y-coordinate, 2. What do you get?

Then the coordinates of point C, which is (1/4) of the way from A to B, are (-1+2), or 1, and (2-1), or 1: (2, 1).

Ask questions if this is not clear.

Note that this is not your answer; it's an example only.

I still need to know what ratio you're supposed to use to subdivide line segment AB.