Question

Find all the points having an x-coordinate of 9 whose distance from the point (3,2) is 10.

Answer 1

Do you know the distance formula?

Answer 2

yes

Answer 3

\[\rm \large D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\]Plug in the given values.\[\rm \large D = \sqrt{(x_2 - 3)^2 + (y_2 - 2)^2}\]

Answer 4

\[\large \rm 10 = \sqrt{(x - 3)^2 + (y - 2)^2}\]Let's just call y2 = y and x2 = x.

Answer 5

\[\rm \large (x - 3)^2 + (y - 2)^2 = 100\]Find all possible solutions.

Answer 6

ok , thanks :)

Answer 7

You're welcome. :D

Answer 8

can i ask u a question ?

Answer 9

Yeah sure.

Answer 10

A. (9,2) , (9 ,-4) B. (9,13) , (9,-7) C. (9,12) , (9,8) D. (9,6) , (9,-10)

Answer 11

i chose D, is that right ?

Answer 12

or wrong? :D

Answer 13

Wait... let's check

Answer 14

ok

Answer 15

really o_O

Answer 16

I'm too lazy to do it... ask wolfram

Answer 17

ok :)

Answer 18

tks