<em>There is no specific requirement in the question, but I'm assuming you need to compute the time needed for Alexis reach 1,000,000 Instagram followers</em>
Answer:

Step-by-step explanation:
<u>Exponential Growth
</u>
When the number of observed elements grows as the previous value multiplied by a constant ratio, we have exponential growth. The formula to model such situations is

Where
is the initial value of f, 1 + r is the constant ratio, and t is the time expressed in half days (12 hours)
The initial value is 100 Instant followers, thus:

We need to know when the number of followers will reach 1,000,000. Setting up the equation

Simplifying by 100

Taking logarithms


Solving for t
periods of 12 hrs

Answer:
its below
Step-by-step explanation:
a) (0,1) (-1,2) (1,2) (2,5) (-2,5)
b) (0, -1, 1, 2, -2)
c) (1,2,5,5)
#4 a) f(-5) = 39
b) f(1) = -9
Log(7x+1) - log(x-2) =1
log[(7x+1) / (x-2)] =1 or log[(7x+1) / (x-2)] =log10 (log10=1)
it means (7x+1) / (x-2) =10
Solving ===> x=7