Question

Write the equation of the axis of symmetry,and find the coordinates of the vertex of the graph of each function.Identify the vertex as a maximum or minimum. Then graph the function Y=-3X^2-6X+4

Answer 1

y=-3(x^2+2x)+4
=-3(x^2+2x+1-1)+4
=-3(x+1)^2+3+4
y-7=-3(x+1)^2
axis of symmetry is x+1=0
vertex is (-1,7)
it is a downward parabola
with maxima at (-1,7)
and maximum value of y=7