Question

find the axis of symmetry and vertex of
y=-3xsquared + 4

Answer 1

vertex(0,-4)

Answer 2

axis of symmetry is x = -b/2a

a = -3
b = 0

x = 0/2(-3) so x = 0

Axis of symmetry is x = 0
To find the y, put in x = 0 into the original equation
y = -3*0^2 + 4
y = 4

vertex (0,4)