Based on the trend lines you just generated, which of these statements are true? Check all that apply. Both scatterplots had trend lines with positive slopes. The same test score is expected from studying for 5 hours or sleeping for 5 hours. There is no correlation between the test scores and the number of hours slept. The regression line can predict the number of hours studied based on the number of hours slept. There is evidence that those with higher test scores tended to sleep more the night before.

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

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

5/20 so 25%

step-by-step explanation:

y=sec x is the correct answer

~batmans wife dun dun