Which is an equation in point-slope form for the line that passes through the points (−1,4) and (3,−4) ? pls me

a. y+4=2(x−3)

b. y−4=2(x+3)

c. y−3=−2(x+4)

d. y+4=−2(x−3)

How do i do this using elimination 2x+3y=12 x-y=6

Factor the monomial completely 42a3b3

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?