Answer:
not a function
Step-by-step explanation:
We can use the vertical line test to tell if this is a function
If a vertical line touches the graph at more than one point it is not a function
Since this graph is a vertical line, it will fail the vertical line test.
Therefore, this is not a function
Answer:
See below
Step-by-step explanation:
A 2.5 % decrease means 97.5 % remains (.975)
population = 10800 ( .975) ^n where n = years past 2002
in 2020 n = 18
10800 (.975)^18 = 6847 people
Let the two numbers be x and y.
The sum is 45, therefore
x + y = 45 (1)
The difference is 5, therefore
x - y = 5 (2)
Add equations (1) and (2).
x + y + (x - y) = 45 + 5
2x = 50
x = 25
From (1), obtain
25 + y = 45
y = 45 - 25 = 20
Answer: 20 and 25
Answer: z = 7
Step-by-step explanation:
