Question

can someone please give me the vertex and 4 additional points, 2 on each side of the vertex for the following equation?
y=4/3x2+8/3x-8/3

Answer 1

given the form: ax^2 + bx + c

the x value of the vertex is equal to -b/(2a)

Answer 2

pick 2 values to the left and right of that x value; and plug them all into the equation for y

Answer 3

Thanks! would you be able to graph it for me?

Answer 4

the wolf can graph it for you ...

http://www.wolframalpha.com/

Answer 5

plug it in and it can even give you the vertex

Answer 6

Thanks