Algebra-1

The correct answer is A. Linear functions add by the same number every time.

A linear function is defined by the equation f(x) = mx + b, where 'm' is the slope of the line and 'b' is the y-intercept. The slope 'm' determines the rate at which the function values change as 'x' increases. It represents the amount the function value increases or decreases for each unit increase in 'x'. This can be thought of as adding or subtracting the same number every time.