(1 point) Find f(10),f(−9),f(π),andf(−9.1)
f
(
10
)
,
f
(
−
9
)
,
f
(
π
)
,
and
f
(
−
9.1
)
for :
f(x)={x+9‾‾‾‾‾√−4if x>9if x≤9
f
(
x
)
=
{
x
+
9
if x>9
−
4
if x≤9

You may keep radicals in any answers where appropriate. Use pi to represent π
π
.