Y=a(x-h)²+k
is it positive or negative? explain.

it determines if the numbers are positive or negative

Step-by-step explanation:

x stays the same integer

k flips the sign

y = a(x – h)2 + k, where (h, k) is the vertex. in y = ax2 + bx + c (that is, both a's have exactly the same value). The sign on "a" tells you whether the quadratic opens up or opens down.

Step-by-step explanation:

%40

step-by-step explanation:

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)