A '''linear function''' is a degree 1 [[polynomial]]; every degree 1 polynomial is a linear function. Linear functions can be written in the form <math>f(x) = mx + b</math>, where x is a variable and m and b are [[real number]]s. | A '''linear function''' is a degree 1 [[polynomial]]; every degree 1 polynomial is a linear function. Linear functions can be written in the form <math>f(x) = mx + b</math>, where x is a variable and m and b are [[real number]]s. |