graphing of parabola - What?

Question

graph this parabola
y= 4/3x^2 + 8/3x + 13/3

plot the vertex and four additional points, two on each side of the vertex . What would the points to plot be?

Answer 1

V = -b/2a = -8/3 / 8/3 = -1 (-1, 3)

Pick x = -2 and 0, y = 13/3

Pick x = -4 and 1, y = 25/3