For 50 points
for the function f(x)=-4 sqrt x-1 find the inverse function
a) f^-1(x)=-(x+1)^2/16, x< _-1
b) f^-1(x)=(x+1)^2/16 , x> _-1
c) f^-1(x)=(x+1)^2/16
d)f^-1(x)=(x+1)^2/16, x< _-1
only answer if you really know, . im really struggling with my class and need some if someone could walk me through this that would mean the world to me.

21.4 i did it already for s1

step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

step-by-step explanation:

answer: the answer for that is 22/3