When comparing linear, quadratic, cubic, and exponential functions, what key feature do all four function types share?

• The minimum value of all function types is (0, 0).
• The x-intercept of all four function types is (0, 0).
• The range of all four function types is all real numbers.
• The domain of all four function types is all real numbers.

The domain of all four function types is all real numbers.