Is the following relation a function?
two circles are shown, one labeled x and the other labeled y. the x circle contains the numbers 6, negative 1, 4, and 0. the y circle contains the numbers 2, negative 1, and 3. arrows map numbers from x to numbers from y. there are arrows going from 6 to negative 1, from negative 1 to 2, from 4 to 3, and from 0 to 3.
answer
yes
no

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Which of the following tables represents exponential functions?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.