Answer(1.833,3.167)
Step-by-step explanation:
Can you make this more clear?? not really sure what I'm supposed to be doing here
Answer: (13,-7)
Step-by-step explanation:
By using the formula ![(x_{m},y_{m}) =(\frac{x_{1}+x_{2} }{2},\frac{y_{1}+y_{2} }{2} )](https://tex.z-dn.net/?f=%28x_%7Bm%7D%2Cy_%7Bm%7D%29%20%20%3D%28%5Cfrac%7Bx_%7B1%7D%2Bx_%7B2%7D%20%20%7D%7B2%7D%2C%5Cfrac%7By_%7B1%7D%2By_%7B2%7D%20%20%7D%7B2%7D%20%29)
is the coordinates of the midpoint.
For finding the midpoint X variable do:
![(\frac{4+22}{2})=13](https://tex.z-dn.net/?f=%28%5Cfrac%7B4%2B22%7D%7B2%7D%29%3D13)
For finding the midpoint Y variable do:
(you can either keep the parenthesis or take them out. Either way, the answer is the same.
Considering coordinate numbers follow the format: (x,y), you'll simply just substitute the numbers found above into their respective places.
x: 13
y: -7
(13,-7).
y = - 25
since x varies directly with y then we can express the relationship as
x = ky ← k is the constant of variation
to find k use the given condition y = - 10 when x = 4
k =
=
= - ![\frac{2}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D)
hence x = -
y
when x = 10
10 = -
y
multiply both sides by - 5 and divide both sides by 2 )
- 50 = 2y ⇒ y = - 25