Humans of earth! i really do not understand this question asap! i am trying to figure this out but i do not get sorry to bother the expression -5 (3b-7) i will give brainliest if i see good explanation's and if i can. 5 to 10 points given on this question

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?