Chris plans to mulch the border surrounding a rectangular garden in his backyard. if the length, l, of the garden (excluding its border) is 3 more than twice its width, w, and the width of the border is , which function represents the area, a, to be mulched in terms of w?

let x represent the width of the border

so th function represents the area, a, to e mulched is

the area to be mulched is the area of the big rectangle with the border minus the area of the original garden

a = ( l + 2x)( w + 2x) – (lw)

a = ( 2w + 3a + 2x) ( w + 2x) – ( 2w^2 + 3w) 

y=mx+