Quadratic Graphs
Assignment
For each of the following, sketch the graph and state the range of values of y.
(1)
(2)
(3)
(4)
(5)
Answers:
(1) has a minimum point at ().
Hence, .
Graph of y = x²-3x-4
(2) has a maximum point ().
Hence, .
Graph of y = -2x² + 6x
(3) y= -x²+5x-6 has a maximum point at ().
Hence, .
Graph of y= -x²+5x-6
(4) y= 3x²+5x-2 has a minimum point of ()
Hence,
y= 3x²+5x-2
(5)y= 4x²-9 has a minimum point at (0, -9).
Hence,