To find the value of Y when x=1, we can substitute x=1 into the equation Y=1/3x^3+x^2-3x:
Y = 1/3(1)^3 + (1)^2 - 3(1)
Y = 1/3 + 1 - 3
Y = 1/3 + 1 - 9/3
Y = 1/3 + 3/3 - 9/3
Y = (1 + 3 - 9)/3
Y = -5/3
Therefore, when x=1, Y=-5/3.
To find the value of Y when x=1, we can substitute x=1 into the equation Y=1/3x^3+x^2-3x:
Y = 1/3(1)^3 + (1)^2 - 3(1)
Y = 1/3 + 1 - 3
Y = 1/3 + 1 - 9/3
Y = 1/3 + 3/3 - 9/3
Y = (1 + 3 - 9)/3
Y = -5/3
Therefore, when x=1, Y=-5/3.