Which of the following can be used to determine whether a linear relationship is proportional?

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

What’s the domain of this function? fastttt

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9