Enter an equation in point-slope form for the line.
(4, 5) and (5, 1) is on the line.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

to be honest i don't know but i need points so