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.

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

entering that problem on the tube might get you an answer