Question

Which of the following best describes the ordered pairs listed below?

(-5, 2), (0, -3), (5, -8), (9, -12)

function only

both a relation and a function

relation only

neither a relation nor a function

Answer 1

@DanJS

Answer 2

its definitely a relation

is it a function?

Answer 3

For it to be a function, you want each of the x values to map to only a single y value in each (x,y)

Answer 4

i think its both a relation and a function

Answer 5

yep

Answer 6

correct

Answer 7

if you plot those points, and sorta connect them with lines, Test if it is a function by scanning a vertical line across the graph. if the vertical line intersects the graph in more than one place at a single time, it is not a function

Answer 8

that's the exact same thing as looking as making sure the x's are with only one y

but lots more work...

Answer 9

so having two of the same x values mapping to two y values, means a vertical line would have 2 points on it, and not be a function

Answer 10

the for helping me