Question

Please Help Algebra 2 Midpoint, Picture below

Answer 1

Do you know what formula to use?

Answer 2

yes the midpoint formula

Answer 3

Did you try it out with 34, if so what did you get?

Answer 4

I get what to do i just need help with 36

Answer 5

For 34 I got (-5,-15) so your answer is incorrect.

Answer 6

Wait how? my teacher said to do this

Answer 7

You first add the x or y of the given endpoint then multiply by 2

Answer 8

That `-8` is a mistype it should be `-3`.

Answer 9

oh shoot

Answer 10

i did what i drew and got -3/2

Answer 11

let me get that up again

Answer 12

That is wrong.

Remember that each part of the midpoint formula solves both x and y separately.

So if we were to split the midpoint formula we would have:

\(\large\bf{x=\frac{x_{1}+x_{2}}{2}}\)

\(\large\bf{y=\frac{y_{1}+y_{2}}{2}}\)

If you plug in your points you would find your solution to be `(-5,-15)`.

Answer 13

\(\large\bf{-2=\frac{1+x}{2}}\)

\(\large\bf{-9=\frac{-3+y}{2}}\)

Simplify to find your points.

Answer 14

i got x = -3/2 y = -3

Answer 15

Not quite.

Let's do the first one.

\(\Large\bf{-2=\frac{1+x}{2}}\)

We first need to multiply both sides by 2.

\(\large\bf{-2 \color{red}{ \times 2} = \frac{1+x}{2} \color{red}{\times 2} \rightarrow -4=1+x}\)

Now we subtract 1 from each side.

\(\large\bf{-4 \color{red}{-1} = 1 \color{red}{-1}+x}\)

\(\Large\bf{\color{red}{x=-5}}\)

Answer 16

Follow by the same process for y.

Answer 17

but my algebra teacher said to subtract first THEN multiply

Answer 18

It's first multiply THEN subtract. You have to follow by PEMDAS. Multiplying is first then Subtracting.

Answer 19

ok

Answer 20

Try it with y.

\(\large\bf{-9=\frac{-3+y}{2}}\)

Answer 21

-15

Answer 22

There you go XD

So your endpoint is `(-5,-15)` ;)

Answer 23

Try it out with 35.

Answer 24

lol thanks but could you help me find y in 36

Answer 25

First make sure you have `x` correct.

You would set it up as the formula used before.

\(\Large\bf{-\frac{9}{5}=\frac{-\frac{7}{5}+x}{2}}\)

\(\Large\bf{\frac{7}{4}=\frac{\frac{8}{7}+y}{2}}\)

Solve to find the two points.

Answer 26

ok thanks @563blackghost

Answer 27

Make sure to use the same format for 35, dont want you getting that wrong >.<

Answer 28

ok I won't i got -4. -5

Answer 29

Which answers are those for?

Answer 30

Is that for 35? If so, then that is correct.

Answer 31

@vaporeon246

Answer 32

yep

Answer 33

Okay then it's correct ;D

What did you get for 36?

Answer 34

-11/5, 33/14

Answer 35

Correct ;)

Answer 36

Thank you for your help @563blackghost

Answer 37

No problem >.<