  We present new 5 GHz VLA observations of a sample of 8 active
intermediate-mass black holes with masses $10^{4.9} < M < 10^{6.1}\ M_{\odot}$
found in galaxies with stellar masses $M_{*} < 3 \times 10^{9}\ M_{\odot}$. We
detected 5 of the 8 sources at high significance. Of the detections, 4 were
consistent with a point source, and one (SDSS J095418.15+471725.1, with black
hole mass $M < 10^{5}\ M_{\odot}$) clearly shows extended emission that has a
jet morphology. Combining our new radio data with the black hole masses and
literature X-ray measurements, we put the sources on the fundamental plane of
black hole accretion. We find that the extent to which the sources agree with
the fundamental plane depends on their star-forming/composite/AGN
classification based on optical narrow emission line ratios. he single
star-forming source is inconsistent with the fundamental plane. The three
composite sources are consistent, and three of the four AGN sources are
inconsistent with the fundamental plane. We argue that this inconsistency is
genuine and not a result of misattributing star-formation to black hole
activity. Instead, we identify the sources in our sample that have AGN-like
optical emission line ratios as not following the fundamental plane and thus
caution the use of the fundamental plane to estimate masses without additional
constraints, such as radio spectral index, radiative efficiency, or the
Eddington fraction.
