Maybe try (-9, 6) and (-9,5)
i think it may be correct
if it is asking for compound interest your answer should be 49761.9
-1 or option c is correct. Use the given functions to set up and simplify f(−2).
f-¹(x)=
Answer:
Solution given:
f(x)=
Let f(x)=y
y=
Interchanging role of x and y
x=
doing crisscrossed multiplication
x(y+7)=-2y+2
now solve it:
xy+7x=-2y+2
keep like terms in one side
xy+2y=2-7x
take common
y(x+2)=2-7x
make a value of y
y=
So,
f-¹(x)=