Question

Describe the key features of the graph of the quadratic function f(x) = -5x2 + 5.
A. Does the parabola open up or down?
B. Is the vertex a minimum or a maximum?
C. Identify the axis of symmetry, vertex and the y-intercept of the parabola

Answer 1

the parbola open up and the the vertex is minimum

Answer 2

parabola opens down since a is -ve
vetex has a maximum since its double derivative is -ve
vetex (0,5) y=5 is axis of symmetry y intercept is 5...