# Describe the domain and range of the function. f(x, y) = ln(xy − 10) Domain: (x, y): x > 10, y > 10   (x, y): x is any real number, y is any real number   (x, y): xy ≠ 10   (x, y): xy > 10   (x, y): xy ≥ 10 Range:all real numbers z ≥ 0 z ≠ 0 z > 0 z ≥ 1

Question

Describe the domain and range of the function.
f(x, y) = ln(xy − 10)
Domain:

(x, y): x > 10, y > 10

(x, y): x is any real number, y is any real number

(x, y): xy ≠ 10

(x, y): xy > 10

(x, y): xy ≥ 10

Range:
all real numbers

z ≥ 0

z ≠ 0

z > 0

z ≥ 1