Answer:
Yes.
Step-by-step explanation:
Yes because each value of x maps to a single value of y.
THere is a many-to-one relation with (1, 12) and (5, 12) but that is OK for a function. What would not be OK is if we had a one-to-many relation like (1, 12) and (1, 14) included in the ordered pairs - that is not a function.
Answer:
You invested $5000 between two accounts paying 2% and 4% annual interest, respectively. If the total interest earned for the year was $160, how much was invested at each rate? $ was invested at 2% and was invested at 4%.
The answer is 12. How did I get it?
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A B C
AC = 21 (the whole line adds up to 21)
AB = 9 (half of the line is 9)
BC = AC-AB
21- 9 = 12 so BC is 12
