Answer:
f⁻¹(x) = (4x)/5
Step-by-step explanation:
f(x) = 2x - 3x/4.
Assume y=f(x). Therefore:
y = 2x - 3x/4.
Make x the subject in the above equation.
y = (2x(4) - 3x)/4.
y = 5x/4.
4y = 5x.
(4y)/5 = x.
x = (4y)/5.
Therefore:
f(y) = (4y)/5.
Replace y with x.
f⁻¹(x) = (4x)/5.
Therefore, the inverse of f(x) = 2x - 3x/4 is f⁻¹(x) = (4x)/5!!!
Answer:
Z
y
x
Step-by-step explanation:
zy
xz
xy
So starting with the first inequality:
Firstly, subtract 1/5 on each side. 
Next, multiply each side by 2/3, and your answer should be:

Second inequality:
Firstly, add 7/3 on each side 
Next, multiply by -2 on each side, and flip the less than or equal to sign because you are multiplying by a negative. Your answer will be 
In short, the correct option is the first option.