Determine the equation, in the form y = a(x - r)(x - s), for the parabola shown. 1) y = -\frac{1}{4}(x + 2)(x + 4)
2) y = -\frac{1}{2}(x + 2)(x + 4)
3) y = -\frac{1}{4}(x - 2)(x - 4)
4) y = -\frac{1}{2}(x - 2)(x - 4)

answer   download the app called socratic on your phoner:

step-by-step explanation:

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.

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