Question

which ordered pair is a solution of y = -6x-7?
a.(0.5,-4)
b.(2,-19)
c.(-2,-5)
d.(3,11)

Answer 1

b

Answer 2

how can you explain me how you get that?

Answer 3

this can be solved by substitution of (x,y) for:
a implies -4 = -6(0.5)-7
= -3-7
=-10, which is a contradiction.
b implies -19 = -6(2)-7
= -12-7
=-19 True
c implies -5 = -6(-2)-7
= 12-7
= 5, contradiction
d implies 11 = -6(3)-7
=-18-7
=-25, contradiction

Answer 4

b