when both the dependent and independent values of a function increase, it is said to be ?

Which of the following is NOT a function?

Can this be a one to one function?

The population of a Ukrainian village is currently 500. Based on the observed growth of the population in past years it is estimated that after 1 year the population will be 600. Similarly, it is estimated that after 2 and 3 years, the population of the village will be 720 and 864 respectively.Which function describes the relationship between year and the village population?

Is this a function?

JUIVE LITC pr DICII. Assume it costs 30 cents to mail a letter weighing one ounce or less, and then 28 cents for each additional ounce or fraction of an ounce. Write a piecewise-defined function P(x) that represents the cost, in cents, of mailing a letter weighing between O and 3 ounces.

Which of the following are functions? Explain how you know for each. a/ {(2, 3), (3, 2), (2, 5)}, b/{(2, 3), (3, 2), (5, 2)}

Are all odd functions always decreasing? Explain