Parallelogram abcd has vertices at a(2,−3), b(8, −6), c(14, −3), and d(8,0).

select the option which best completes the two following statements:

the lengths of two consecutive sides (

the slopes of two consecutive sides (

(1.) are equal

(2.) are opposite reciprocals

(1.) are not equal

(2.) are opposite reciprocals

(1.) are equal

(2.) are not opposite reciprocals

(1.) are not equal

(2.) are not opposite reciprocals