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Mathematics
Problem
Let
g
(
x
)
=
x
g(x)=\sqrt{x}
g
(
x
)
=
x
. Which of the following is the equation of the line normal to the graph of
g
g
g
at
x
=
4
x=4
x
=
4
? a)
y
=
4
x
−
14
y=4x-14
y
=
4
x
−
14
b)
y
=
−
8
x
+
34
y=-8x+34
y
=
−
8
x
+
34
c)
y
=
−
4
x
+
18
y=-4x+18
y
=
−
4
x
+
18
d)
y
=
1
4
x
+
1
y=\dfrac14x+1
y
=
4
1
x
+
1
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