SOLUTION: a. Determine if the function is quadratic b. if the graph is concave up or down c. if the vertex of the graph is max or min. point g(x)=-5xroot2-6x=8

You can put this solution on YOUR website!
g(x)=-5xroot2-6x=8
As you have posted this problem you
are describing a line which has none
of the features you are asked to
determine.
Please look at your problem again.
It is probably a quadratic function
with an x^2 in it---maybe your "root 2"
is really x^2.
If so, post accordingly.
Cheers,
Stan H.