A cube is intersected by a plane from the top edge of one face to the bottom edge of the opposite face as shown. What is the shape of the cross-section?
square
rectangle that is not a square
triangle
parallelogram that is not a rectangle

B

Step-by-step explanation:

a rectangle that is not a square

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

expression #3 is not equivalent. the others are.