Question

Determine which relation is a function.
(Points : 1)
{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}
{(–4, 1), (–2, 3), (–2, 1), (–1, 5), (3, 2)}
{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}
{(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}


http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/5271f559358484919d85d1eff206b0b5bb3b04db/mediaasset_1346430_1.jpg
Evaluate the function at x = –2.
(Points : 1)
y = –4
y = 0
y = 2
y = 3

Answer 1

1.) Determine which relation is a function.
A.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/69babcd04d015b5964a8c250a6584fc971d92f17/mediaasset_1348054_1.jpg

B.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/de6e4ed12fa5b037ec709d05fd4d9ae2b6f77491/mediaasset_1348052_1.jpg

C.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/87a6281954dc6c7c752010a6d7ab2f322d3570c9/mediaasset_1348053_1.jpg

D.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/5185dc12f9808cc71607245bf3ac5d0321bb3538/mediaasset_1348051_1.jpg




2.) Determine which relation is a function.

A.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/bedc4a7df6520f604f99a632e2360f3d60a0b58f/mediaasset_243030_1.gif

B.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/8975b0606714b452a0cfcea87a43753f92cf2589/mediaasset_243031_1.gif

C.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/758ba1927609c15223f4a3a474db02b59d0767ff/mediaasset_243032_1.gif

D.) http://static.k12.com/eli/ecollege/593/1_31560/2_43992_4_31668/a0f9d83f92910c1a5984bc8ff4febcb26adbd924/media/9ec265659af0e131f01d386dca8b77c58d415b78/mediaasset_243033_1.gif