f(x) is a fancy way to say y
The equation says y=05, so x is ungiven based on what you have given us. Please check if there was more information written as usually its written as
Example: f(x)=3x+5
Answer:

Step-by-step explanation:
solving for dy/dx
multiply the equation out to remove parentheses

now differentiating in terms of x (
)

isolating dy/dx to one side


