Question

what is a coordinate of a midpoint? in geometry

Answer 1

Hi @tortor10107.
I think you are asking if we have two points (and know their coordinates), how do we find the midpoint. Is that right?

Answer 2

yeah but i guessed, im trying to do this geometry exam i tried to do it once and i failed it. I desperately need help, im terrible at this stuff

Answer 3

Sorry you're frustrated! But consider not describing yourself in such a negative manner. It only hurts you.

Do you have a textbook? If so, have you tried looking up "midpoint" or "midpoint formula"? I know these formulas, but want to encourage you to look up needed info on your own.

Answer 4

i do not have a workbook you just take notes on the lessons. But i looked up the vocab in my notes its just the picture was very confusing.

Answer 5

Ok. Trust me it's easy. Let's do an example.

Consider the two points A(1,2) and B(3,4).
Let M be the midpoint of AB.

To find the midpoint's x value we simply find the average of the 2 points' x values:
(1+3)/2 = 2. So the x-val of M is 2.

Similarly we find the y value by averaging the 2 given y values:
(2+4)/2 = 3. So the y-val of M is 3.

Thus the midpoint is (2,3).

Answer 6

i'm on a new question about coplaner i really just wanna give up

Answer 7

\(\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
A&({\color{red}{ 1}}\quad ,&{\color{blue}{ 2}})\quad B&({\color{red}{ 3}}\quad ,&{\color{blue}{ 4}})
\end{array}\qquad
\left(\cfrac{{\color{red}{ x_2}} + {\color{red}{ x_1}}}{2}\quad ,\quad \cfrac{{\color{blue}{ y_2}} + {\color{blue}{ y_1}}}{2} \right)\)

Answer 8

instead of calling the illustrations "confusing," suggest you draw or copy those illustrations and share them here on Open Study, so that someone can give you meaningful feedback.

Answer 9

jdoe has done a beautiful job of presenting the two midpoint formulas. Tell us, please, what you find confusing about them, and then perhaps one of us can help clarify those sources of confusion. Please be specific and cut the negative remarks about yourself.

Answer 10

thank you for being so positive

Answer 11

I'm assuming that you're given two points, and have to find the midpoint.
I'd think it grossly unfair if your school won't let you share "anything"...perhaps you should clarify this. If the problem statement mentions two points, share them, and then we'll apply jdoe's formulas.

Answer 12

i figured it out with that question

Answer 13

Please stay positive...use this OpenStudy resource as efficiently as y ou can for your own sake and for that of those who would like to help you. If y ou've got this question figured out, then let's drop this conversation and you go ahead and post another problem separately.