Question

will give a medal!!
Which relation is a function?
A.(–8, –3), (–1, –5), (–8, –2)
B.(1, –3), (5, –3), (–3, 7)
C.(–3, 0), (5, 9), (–3, 2)
D.(1, 2), (1, 1), (0, 1)

Answer 1

pick the one where there is no repetition in the first coordinate.
for example .(–8, –3), (–1, –5), (–8, –2) not right because of the repeated \(-8\)

Answer 2

for or second coordinate or just first?

Answer 3

first* xD

Answer 4

a set of coordinates is a function if every x-value has a unique y-value

Answer 5

so it needs to go in an equation? or a table or a graph?