For each quadratic function

Question

(a) find the vertex, the axis of symmetry and the max or min function value 

 

g(x)=2x^2+5x-1

Answer 1

x-coordinate of vertex is

 

x = -b / (2a)

 

where:

a = 2

b = 5

c = -1

 

the x-coordinate of the vertex is also called the axis of symmetry.

 

 

y-coordinate of vertex is  g(x).