What is the vertex of # y = 1/2 (3x + 2)^2 - 1/3 #? Algebra Quadratic Equations and Functions Quadratic Functions and Their Graphs 1 Answer Binayaka C. Apr 9, 2016 Vertex is at #(-2/3,-1/3)# Explanation: #y=1/2(3x+2)^2-1/3= 9/2(x+2/3)^2-1/3#Comparing with the vertex form of equation #y=a(x-h)^2+k# we get vertex is at #(-2/3,-1/3)# graph{1/2(3x+2)^2-1/3 [-5, 5, -2.5, 2.5]}[Ans] Answer link Related questions What are the important features of the graphs of quadratic functions? What do quadratic function graphs look like? How do you find the x intercepts of a quadratic function? How do you determine the vertex and direction when given a quadratic function? How do you determine the range of a quadratic function? What is the domain of quadratic functions? How do you find the maximum or minimum of quadratic functions? How do you graph #y=x^2-2x+3#? How do you know if #y=16-4x^2# opens up or down? How do you find the x-coordinate of the vertex for the graph #4x^2+16x+12=0#? See all questions in Quadratic Functions and Their Graphs Impact of this question 1329 views around the world You can reuse this answer Creative Commons License