Question

if DR=43, what are the possible coordinates of point r if point d=-39?

Answer 1

please help!

Answer 2

I'm assuming you're on a number line.

If D = -39, which point on this number line will be 43 units from D?

Answer 3

oh sry, I mean "which points", there are two possible locations for R

Answer 4

yea there are two and i said -43 but my teacher said it was wrong

Answer 5

thanks you for helping me!

Answer 6

-82*

Answer 7

to find distance on a number line, say between two points x and y, you subtract and take the absolute value

so |x-y| is the distance between x and y

Answer 8

So the distance between D and R is

|D - R|

Answer 9

i know d = -39 but after that i get totally confused and dont know what i am doing

Answer 10

this distance is given to be 43 units, so

|D-R| = 43

and finally, D = -39, which means we can say

|-39-R| = 43

Answer 11

You just need to solve |-39-R| = 43 for R

Answer 12

ok thanks :) you are awesome!

Answer 13

np