Question

Can someone explain me this word problem

the length of a rectangle is 3 more than twice the width, w. Write an equation giving the area, A, as a function of the width.

Answer 1

Let the length=l

Answer 2

So
l=2w+3
Right?

Answer 3

U know
Area of a rectangle=length*weidth

Answer 4

Area=l*w

Answer 5

Put the value of l

Answer 6

The equation of area=(2w+3)w
=2w^2+3w

Answer 7

area (A)=3*1=3

Answer 8

The area as a function of w would be written as:

A(w) = w*(3 + 2*w)