The intersection is (12,220) so the quantity is 12 and the price is 220
Basically what is happening is:
You start out with 15. That 1st week you have 22% more than 15, or in other words 15*1.22. The following week you have 22% more than 22% more of 15, which is 15*1.22*1.22.
Now we can write a function that models this situation:
f(n): number of views
n: number of weeks since you started
f(n) = 15(1.22^n)
We want to find out how many views there are after four weeks, so plug 4 in for n.
f(4) = 15(1.22^4)
f(4) = 33.23
This means after 4 weeks you can expect the video to have 33 views.
Answer:
6.4 - x
Step-by-step explanation:
Positive difference is the bigger number- the smaller number
Negative difference is the smaller number- the bigger number
In this case, we do not know which is bigger so it is advisable to go for the known number- the unknown number. that is 6.4 - x
The function is continuous for all real numbers:
f ( x ) = ( x² - 4 ) / ( x + 2 ) =
=
= x - 2
f ( -2 ) = - 2 - 2 =
- 4
ok
Equations : 4x + y = 2 x - y = 3
Equation 1 4x + y = 2 x - y = 3
x y x y
-2 10 -2 -5
-1 6 -1 -4
0 2 0 -3
1 -2 1 -2
2 -6 2 -1
The point where both lines cross is (1, -2) so it is the solution.