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?
O
f(x) = x + 4
O f(x) = -y + 4
O f(x) = -X-4
O f(x) = y-4

Answer 1

f(x) = x + 4

Explanation:

Given

y - x - 4 = 0 ( add x to both sides )

y - 4 = x ( add 4 to both sides )

y = x + 4 ( let y = f(x) )

f(x) = x + 4