SOLUTION: Please, help me to resolved to find the vertex, axis of symmetry, minimum or maximum, domain and range given: y=-3(x+9)²-1

Algebra ->  Equations -> SOLUTION: Please, help me to resolved to find the vertex, axis of symmetry, minimum or maximum, domain and range given: y=-3(x+9)²-1      Log On


   

Question 910119: Please, help me to resolved to find the vertex, axis of symmetry, minimum or maximum, domain and range given: y=-3(x+9)²-1
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
y=-3%28x%2B9%29%5E2-1

+graph%28+600%2C+600%2C+-20%2C+10%2C+-10%2C+10%2C+-3%28x%2B9%29%5E2-1%2C-9%29+
(-9, -1)
max{y = -3 (x+9)^2-1} = -1 at x = -9
domain: R (all real numbers)
range:{y element R : y<=-1}
Every parabola has an axis of symmetry which is the line that runs down its 'center'. This line divides the graph into two perfect halves.
draw the axis of symmetry: it's the line parallel to y and goes throughx+=+-9