What is the equation, in slope-intercept form, for the line through the point (3,-1) and perpendicular to y = 5x + 2?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

Don't know how to find x given these segment lengths

Which one is true about the hexagons ?