The answer is C. I need a total of 20 characters so heres a smiley face:)
Answer:

Step-by-step explanation:
Flip the equation.

Add -9 to both sides


Divide both sides by 7/8

hope this helps
The vertex would be at (3, 6).
Answer:
-1 1/3 as a mixed number (if they ask for it in simplest form, choose this one)
-4/3 as an improper fraction
Step-by-step explanation:
1. Keep, change, flip
4/5 x -5/3
2. Cross cancel the fives
4/1 x -1/3
3. Simplify
-4/3 or -1 1/3 (they're equivalent)