Function Family: Linear functions
Parent Function: f(x) = x
Domain (D): All real numbers (-∞, ∞)
Range (R): All real numbers (-∞, ∞)
End Behavior: As x approaches positive or negative infinity, f(x) approaches positive or negative infinity respectively.
Increasing Interval: The function f(x) = x-4 is increasing for x > 4.
Decreasing Interval: The function f(x) = x-4 is decreasing for x < 4.