Jeff has already prepared 6 kilograms of dough and will continue preparing 1 kilogram of
dough every hour. how much dough did jeff prepare if he worked for 11 hours?

ANSWER:  

Dough prepared by Jeff after working for 11 hours is 17 kg

SOLUTION:

Given that, Jeff has already prepared 6 kg of dough.  

And, he will continue preparing at the rate of 1 kg of dough per an hour.

Rate of preparation = = 1 kg per hour.

If Jeff worked for 11 hours, then dough prepared = rate of preparation time taken

Dough prepared =

Dough prepared = 11 kg

Total dough prepared by Jeff = already prepared 6kg of dough + dough prepared in 11 hours  

Total dough = 6 + 11 = 17kg

Hence, dough prepared by Jeff after working for 11 hours is 17 kg

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

70.30

step-by-step explanation: