Which equation represents a direct variation?
y = 2*
y = x +4
y= 1/2 x
y=3/X

y = x

Step-by-step explanation:

The equation of quantities in direct variation is

y = kx ← k is the constant of variation

The only equation in this form is

y = x

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry