Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Consider the quadratic function
g
(
x
)
=
−
x
2
+
k
x
+
4
g(x)=-x^{2}+kx+4
g
(
x
)
=
−
x
2
+
k
x
+
4
. If
k
k
k
is positive and the maximum value of
g
(
x
)
g(x)
g
(
x
)
equals
7
7
7
, then
k
k
k
is a)
3
3
3
b)
2
3
2\sqrt3
2
3
c)
6
\sqrt6
6
d)
2
2
2
Browse the problem library