Answer:
10
Step-by-step explanation:
9% of $20,000 is $1,800
20,000 - 1,800 = 18,200
18,200 - 1,800 = 16,400
16,400 - 1,800 = 14,600
14,600 - 1,800 = 12,800
12,800 - 1,800 = 11,000
11,000 - 1,800 = 9,200
9,200 - 1,800 = 7,400
It takes 7 years to get 7,400 and to the nearest tenth is 10
5/4 = 1.25
He swims 1.25 laps per minute
Ok so you are correct that x is input and y is output
the
you could be talking about a function in general or a kind of function normally used called a one-to-one function which I will assume you are talikning about
one-to-one funciton has that for every input, there is only 1 output, ie, x never repeats with a diffent y
example
(1,2), (2,2) is a function since x didn't repeat
(1,2), (1,3) is not since x repeats with a different y
points given are
(-5,1),(-3,-2), (3,0),(1,1),(2,0),(6,4)(8,-2),(8,7)
we see that the points (8,-2) and (8,7) make it not a function since it is the same input (8) that gives 2 different outputs
professor octavious is wrong since 8 repeats
Cos 270 = 0 and sin 270 =-1
so -5i from a part.
I think its the Associative property