Answer:
idk, can I?
Step-by-step explanation:
<span>3y+4-y=3
combine like terms
2y +4 = 3
subtract 4 on both sides
2y = -1
divide both sides by 2
y = -1/2</span>
Neato
assuming you mean

remember
in form

a is leading coficient
(h,k) is vertex
k will be the minimum or max value of the function
if a is positive, then the parabola opens up and k is minimum
if a is negative, then the parabola opens down and k is max
given
a is negative
the parabola opens down and k is the max value
it is -3
the max value is -3, which occors at x=2
g(2)=-3 is max