8. ¿Para qué sirve trazar diagonales desde un vértice en los polígonos?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?