SOLUTION: Given the quadratic functions, determine the value of a, direction of opening of the graph, vertex and the axis of symmetry. 7. y=-x^2-2 8. y=-(x+2)^2-2

Algebra ->  Trigonometry-basics -> SOLUTION: Given the quadratic functions, determine the value of a, direction of opening of the graph, vertex and the axis of symmetry. 7. y=-x^2-2 8. y=-(x+2)^2-2      Log On


   

Question 784945: Given the quadratic functions, determine the value of a, direction of opening of the graph, vertex and the axis of symmetry.
7. y=-x^2-2
8. y=-(x+2)^2-2
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Given the quadratic functions, determine the value of a, direction of opening of the graph, vertex and the axis of symmetry.
7. y=-x^2-2
This is an equation of a parabola that opens downward
a=-1
vertex:(0,-2)
axis of symmetry: x=0 or y-axis
..
8. y=-(x+2)^2-2
This is an equation of a parabola that opens downward
a=-1
vertex:(-2,-2)
axis of symmetry: x=-2