Answer:
A. (1-,1)
How ?: Just plug in -1 in the x spot and 1 in the y spot on both sides... If answers are the same that’s the answer.
There is a rule:
One input(x-value) can only have one output(y-value) in order to be a function.
If one input has more than one output, it is not a function.
(This doesn't apply to outputs, one output can have more than one input and still be a function)
The 1st option is not a function because the inputs 9 and 10 have more than one output.
The 2nd option is not a function because the input 3 has more than one output.
The 3rd option is a function because each input only has one output.
The 4th option is not a function because the input 5 has more than one output.
How are we supposed to help with this what the heck??
10 • 10=
Is 10^2
In exponential form
1049841
1053000x.003=3159
1053000-3159=1049841
