You can read this max y-value directly from the graph. It's 4. The vertex of this graph is at (2,4).
B. if you think it is not correct don't put it in
Step-by-step explanation:
you flip it from the line, match the letters (Z woube be C, X would be A, etc.) and then writw the new coordinates
24% .61 2/3 two thirds is .66 24% is .24 and .61 is .61