Jefferson high school is looking to expand its student parking lot by expanding the existing lot as
shown below.
expanded part of lot
75 ft.
old lot
105 ft.
school
300 ft.
75 ft.
xft.
the size of the new parking lot will be twice the size of the old parking lot. how many feet, x, was the
old parking lot expanded by?

the correct answer is 5 6 and 7

answer for #1 is c

answer for #2 is d

can i get brainliest

where are the graphs?

step-by-step explanation:

1. when "a" is a root of a polynomial, (x -a) is a factor of it. for the three roots given, the factors of the desired polynomial are (x +2)(x -1/2)(x -3).

in order to make the leading coefficient be negative, we need to multiply this product by a negative number. any negative number will do, but we choose a small (magnitude) value that will eliminate the fraction: -2.

then

f(x) = -2(x +2)(x -1/2)(x -3) = -(x +2)(2x -1)(x -3)

= -(2x² +3x -2)(x -3)

= -(2x³ -3x² -11x +6)

f(x) = -2x³ +3x² +11x -6

2. a graph created by the desmos on-line graphing calculator is shown, and the zeros are highlighted.

3. as indicated in part 1, the multiplier of this equation can be anything and the zeros will remain the same. you want a negative leading coefficient, so the "anything" is restricted to any of the infinite number of numbers that will make that be the case.