Answer:

Step-by-step explanation:
Given
---- 
--- 

Required
The coordinates of P
This is calculated as:
![P = (\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n}]](https://tex.z-dn.net/?f=P%20%3D%20%28%5Cfrac%7Bmx_2%2Bnx_1%7D%7Bm%2Bn%7D%2C%5Cfrac%7Bmy_2%2Bny_1%7D%7Bm%2Bn%7D%5D)
So:



Answer:
The axis of symmetry
The x-value of the vertex
<span>a=9.3</span> units
Explanation:
Use pythagorean theorem,
<span><span>c2</span>=<span>b2</span>+<span>a2</span></span>
Rearrange,
<span>a=<span>√<span><span>c2</span>−<span>b2</span></span></span></span>
Sub in and solve,
<span>a=<span>√<span><span><span>(12.6)</span>2</span>−<span><span>(8.5)</span>2</span></span></span></span>
<span>a=9.30</span> units
hope i helped -beanz:)
Your answer is 500, review the image I created to understand how I got my answer.