Answer:
(-1, -7)
Step-by-step explanation:
Used desmos, also, in these situations I believe you can take the number inside the brackets and make it negative and keep the number outside the same to find the vertex.
Answers:
a= 5x±
------------------------------
6
u=± 
-------------------------
2
<h2>Brainliest please!!!! It took me a while to figure this out!</h2>