How do you do exprssion with its value 2/5 * 8/15

Which functions are even? check all of the boxes that apply. f(x) = x4 – x? f(x) = x2 – 3x + 2 f(x) = (x - 2) f(x) = x done

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Math i have no idea how to do a and b