23 Domain and Range of Functions Alg1B

Find the domain and range of the function f(x) = 2x + 3.

• The domain is all positive numbers and the range is all positive numbers.

• The domain is all integers and the range is all integers.

• The domain is all real numbers and the range is all real numbers.

• The domain is all negative numbers and the range is all negative numbers.

Determine the domain and range of the function g(x) = √(x - 4).

What is the domain and range of the function h(x) = |x|?

• The domain is all real numbers and the range is all positive real numbers.

• The domain is all real numbers and the range is all non-negative real numbers.

• The domain is all real numbers and the range is all negative real numbers.

• The domain is all real numbers and the range is all real numbers except zero.

Find the domain and range of the function k(x) = 1/x.

• The domain is all real numbers except x = -1 and the range is all real numbers except y = -1.

• The domain is all real numbers except x = 1 and the range is all real numbers except y = 1.

• The domain is all real numbers except x = 0 and the range is all real numbers except y = 0.

• The domain is all real numbers except x = 0 and the range is all real numbers except y = 1.

What is the domain and range of the function r(x) = 1/(x - 2)?

• The domain is all real numbers except x = 1, and the range is all real numbers except y = 0.

• The domain is all real numbers except x = 0, and the range is all real numbers except y = 2.

• The domain is all real numbers except x = -2, and the range is all real numbers except y = 1.

• The domain is all real numbers except x = 2, and the range is all real numbers except y = 0.