Answer:
D
Step-by-step explanation:
The function is a decreasing exponential function with y intercept (0,-1/2)
1 - 74
2- 106
3- 74
4- 106
5- 106
6- 74
7- 106
8- 74
n=4
To get an undefined slope, the denominator has to be zero
m= (y2-y1)/ (x2-x1)
This means that x2-x1 = 0
or x2=x1
So 4=n
x=18