Answer:
The vertex of the function
is 
Step-by-step explanation:
I've graphed this on desmos for a visual
Answer:
1,3
2,4
5,7
6,8
Step-by-step explanation:
congruent angles are angles across from each other and they equal the same
For this you want to solve a 2-step equation
0.5x+4.2=5.9
subtract 4.2 from the left and right sides
then divide on the left and right sides
x=3.4 (option B)
There isn't enough info to determine that, I believe. You would need an equation that would allow me to determine the minimum output for an A.