What’s is the slope and y intercept of 3x-4y=-15

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

The price of one share of a company’s stock declined $13.89 every day for 2.5 days what was the stocks total decline in price

Factor this polynomial completely. x^2-8x+12