Answer:
Step-by-step explanation:
first number = x
second number = y
x = y - 4
2y = 3x + 19
substitute x to the second equation
2y = 3(y-4) - 4
2y = 3y -16
-y = -16
y = 16
Go back to first equation
x = y - 4
x = 16 - 4
x = 12
The function is:
f ( x ) = 1,000 · 2^x
x is the number of weeks.
1. y - intercept is : y = 1,000.
2. The y-intercept represents the cicada population at the start ( for x = 0 ).
f ( 0 ) = 1,000 · 2^0 = 1,000 · 1 = 1,000.
3. The 2 in the function shows that cicada population doubles every week.
Answer:
idk
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I think it is sorry if I'm wrong