If y =x^3-3x+1 calculate y when x =-1/3
When x = -1/3, we substitute that value into the expression for y:
y = (-1/3)^3 - 3(-1/3) + 1
Simplifying the exponent and the multiplication by -3:
y = -1/27 + 1 + 1/3
Combining the fractions:
y = 83/81
Therefore, when x = -1/3, y = 83/81.