Question

conisider the function represented by the equation x - y = 3. What is the equation written in function notation, with x as the
ependent variable?
f(x) = y + 3
f(x) = -y-3
f(x) = -x + 3
f(x) = x - 3

Answer 1

x - y = 3

You need to solve for y:

Subtract x from both sides:

-y = -x + 3

Multiply by -1 to make y positive:

y = x - 3

Replace y with:f(x)

The answer is f(x) = x - 3