I cant see ur attached thing
Given the function:
f(x) = x³ + 3x² - 4x + 5
The graph of the function is (taken f:
According to the graph above, the maximum and minimum are 18.13 and 3.87, respectively
Well there are 6 units down and 11 units across so 6•11=66. there are 14 red units. 66-14=52. the area of yellow is 52.
You can see that you're constantly subtracting 8 to get the next number. So, we have





So, as you can see, to get the n-th term we must subtract (n-1) times 8 from the original number.