Rewrite the quadratic function in vertex form.
y=2x^2+4x-1

Step-by-step explanation:

The vertex form of an equation of a parabola:

(h, k) - vertex

We have

We must use the formula:

Use the distributive formula a(b + c) = ab + ac

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet