When graphing a parabola, you always use the opposite of k in vertex form: y = a (x-h)^2 + k True or false? Explain

The value of k is the y coordinate of the vertex and you don't apply the opposite.

For instance, y = 2(x-5)^2 + 19 has vertex (h,k) = (5,19)

Here k = 19 is the y coordinate of the vertex. We don't use -19.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

27 +27 or 27times 2=54

the diffrence is 0