Percents
the rarest eye color in the world is violet only 0.13% of the worlds population have this eye color. the world population is 7.32 billion people.
approximately how many people in the whole world have violet eys?
that is a lot of people! have you ever met someone with violet eyes? lets put all people with violet eyes into the united states so that they are part of the 332 million people.
now what percent of the the population in the united states would have these violet eyes?
question 9
percents
waren buffet's stock went down 4.5% since yesterday. the closing price for this stock yesterday was $221.73
how much money did each share lose?
how much is each share of stock worth today?

42.4

step-by-step explanation:

convert to decimal

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1