The function c(x) = 63. (1.03)* models the cost in dollars, a of 1 ounce of a certain chemical used in a laboratory. e represents the number of years since 1990. By what percentage per year does the cost of the chemical increase or decrease over time?​

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

the answer is 0052

0 0 5 2

5 0 2 6 3 5

− 0

2 6

− 0

2 6 3

− 2 5 0

1 3 5

− 1 0 0

3 5

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