What is 3x+2y=15 y=6x

x = 1

y = 6

Well with those two equations you provided we can solve for x using substitution.

Plug y=6x in for y in 3x+2y=15 to find x through substitution

3x+2(6x)=15 <- Distribute the 2

  3x+12x=15    

        15x=15 <- Combine like terms

            x=1   <- Divide both sides by 15

Now that we have x lets plug it in for x in the equation y=6x

   y=6x         <- Rewrite

   y=6(1)        <- Plug in

   y=6           <- Solved

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

54.864 meters

step-by-step explanation: