Answer:
yes it represents a function.
no
Step-by-step explanation:
x= 1, 2, 3, 4
y= -2, 1, 0, 2
y is changing randomly you won't be able to tell what number is next
Circumference of circle = πd = π × 16 =16 π in.
or
circumference of circle = 2πr = 2×π×8= 16 π in.
Here, this website explains it perfectly
https://www.k5learning.com/blog/subtracting-positive-and-negative-numbers
10 quarters 6 nickels 18 dimes
