Consider the quadratic function
f
(
x
)
=
x
2
+
0
x
−
4
.

Determine the following: (enter all numerical answers as integers, fractions, or decimals):

The smallest
x
-intercept is
x
=

-2
Correct .
The largest
x
-intercept is
x
=

2
Correct .
The
y
-intercept is
y
=

-4
Correct .
The vertex is (
0
Correct ,
-4
Correct ).
The line of symmetry has the equation

i just need the answer above, the rest is correct