I NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!
2 answers:
We have been given a table which lists some of the characteristics of the houses on Katrina’s street.
There are four different relation choices are given. now we have to identify which relationship describes a function.
We know that relations are written usually in ordered pairs (x,y) and a relation can be function only if x-value doesn't repeat.
So we just have to find which of the given ordered pair choices has no repeated x-value in the table.
We see that only "Appraised value" has no repeated value in the table. Hence 4th choice <u>(appraised value, property tax) </u>is the correct answer.
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First case:
average of test score =70
number of students =p
total score of 'p' students = ( average of test score)*( number of students)
total score of 'p' students =70p
Second case:
average of test score =92
number of students =n
total score of 'n' students = ( average of test score)*( number of students)
total score of 'n' students =92n
total number of students = p+n
total average score =86
so, total score =86(p+n)
total score = total score of 'p' students +total score of 'n' students
now, we can simplify it
now, we can find p/n
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