Mr. Frame builds windows, he uses the function P=2l+2w to determine the perimeter of a rectangular-shaped window with length l units and width w units.
A) Write the function, using function notation, that Mr. Frame can use to find the perimeter of any window with a length of 5 ft, given the width.
B) Write the function, using function notation, that Mr. Frame can use to find the perimeter of any window with a width of 3 ft, given the length

Respuesta :

Given:
P = 2l + 2w ; 
P stands for perimeter ; l stands for length ; w stands for width

A) Write the function, using function notation, that Mr. Frame can use to find the perimeter of any window with a length of 5 ft, given the width.

f(w) = 2(5) + 2w
f(w) = 10ft + 2w

B) Write the function, using function notation, that Mr. Frame can use to find the perimeter of any window with a width of 3 ft, given the length

f(l) = 2l + 2(3)
f(l) = 2l + 6ft