Suppose
\displaystyle
is a continuous function where
f
(
9
)
=
7
\displaystyle {f{{\left({9}\right)}}}={7}
f
(
9
)
=
7
and
f
′
(
9
)
=
6
\displaystyle {f}'{\left({9}\right)}={6}
f
′
(
9
)
=
6
.
The tangent line to the graph of
y
=
f
(
x
)
\displaystyle {y}={f{{\left({x}\right)}}}
y
=
f
(
x
)
at
x
=
9
\displaystyle {x}={9}
x
=
9
will intersect the x-axis at
x
=
\displaystyle {x}=
x
=
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Enter DNE for Does Not Exist, oo for Infinity