Question

Consider the function represented by the equation y – x – 4 = 0. What is the equation written in function notation, with x as the independent variable?

Answer 1

y = f(x ) = x+4

is your answer

hope you understand

Answer 2

These are the steps:

1. Replace y with f(x)

2. Make f(x) the subject

y – x – 4 = 0

Replace y with f(x):

f(x) - x - 4 = 0

Add x to both sides:

f(x) - 4 = x

Add 4 to both sides:

f(x) = x + 4

Answer: f(x) = x + 4