Does the following represent direct variation? if yes, find the constant variation

y/x =k

13/9 = 1.4444444

39/27=1.4444444

104/72=1.4444444

k =13/9  = 1 4/9

this is direct variation with a constant of 13/9 or 1  4/9

555.99.

step-by-step explanation:

hope this

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.