Which of the following relations is a function?
2 answers:
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Answer:
(9, 5
) or (9 1/2, 5 1/2) (same things, just typed two different ways)
Step-by-step explanation
I can't remember the midpoint formula so I'll use a different method to get the midpoint.
since the ratio of a midpoint is 1:1 and that as a fraction is 1/2, we can take these coordinates and designate which one is first and which one is second (12, 2) will be my second and (7,9) will be my first. The formula I will use will be , so 1/2( 12 - 7) +7. now distribute the 1/2 to both the numbers
or
. The same works with the Y values, which would equal up to 5.5 or 5