Asked by Zane
How can I find out how this graph and these sets of numbers are one-to-one compatible? I have no clue..
Here is a screenshot of the questions. Just replace the 0 with an O. Thank you!
prntscr.c0m/4rnu45
Here is a screenshot of the questions. Just replace the 0 with an O. Thank you!
prntscr.c0m/4rnu45
Answers
Answered by
Steve
use the vertical and horizontal line tests.
If no line cuts the graph in more than one place, the function is 1-1 and has an inverse.
That is, each x value maps to exactly one y value, and vice-versa.
If no line cuts the graph in more than one place, the function is 1-1 and has an inverse.
That is, each x value maps to exactly one y value, and vice-versa.
Answered by
Zane
Okay I understand now. And #18 is NO because there is two y values that are placed in -1, correct? Like (-3,-1) and (1,-1) since the test would both pass on 2 points.
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