This question is worth 80 points can someone check my answeres
14. using a scale factor of 1inch=16 feet, what are the blueprint dimensions of a room that is 20 feet x 28 feet?
a. 1.5in. x 25 in.
b.1.25in x 2.25in
c. 1.25in x 1.75 in***
d. 1.5 in x 1.75

9. the sides of a rectangle are increased by a scale factor of 4. the perimeter of the smaller rectangle is 20 cm. what is the perimeter of the larger rectangle?
a. 320cm
b. 80cm***
c. 120 cm
d. 60cm

*** means my answer so much

Answer/Step-by-step explanation:

#14. Correct

20ft x 28ft = 560 ft

560ft divided by 16 = 35ft

1.25in x 1.75in = 2.1875

2.1875in x 16 = 35ft

#9. Correct

20cm x 4 = 80cm

Btw this doesn't give us 80 points it gives us half of that = 40 points

good job you smart son of a gun you are smarter that einstein. 7

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