Dana is finding the perimeter of different-sized squares. There is a proportional relationship between the side length of the square in inches, x, and
the perimeter of the square in inches, y.
x (side length in inches) y (perimeter in inches)
1
4
2.
8
3
12
5
20
What is the constant of proportionality? Write your answer as a whole number or decimal.
inches in perimeter per inch in side length

the answer is 4x

Step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75