which of the following is an example of a function

Question

markkboyy · Answer

attachment

thesmartone · Answer

a function has one x value for each y-value

also a function cannot have one x-value with two y-values

But it can have two x-values with one y-value

do you also remember the vertical line test? You can use that if you want to plot the points and see :b

thesmartone · Answer

https://i.ytimg.com/vi/-xvD-n4FOJQ/hqdefault.jpg https://upload.wikimedia.org/wikipedia/commons/f/fd/Vertical_line_test.png

thesmartone · Answer

also a function CANNOT have one x-value with two y-values

that means the answer can't be A, sorry :P

thesmartone · Answer

don't guess and look at the x-values and the y-values of each point