Quadratic Graphs
How many zeroes can a quadratic function have?
What is 2?
The value of "a" for a graph of a quadratic function opening downward.
What is negative?
The coordinates of the y-intercept for the quadratic function y=-2x2 + 5x - 7
Hint: Use your calculator table if needed
What is (0,-7)?
If the roots of a function are x = 6 and x=12, what is the x value of the vertex?
x = 9
The shape of the graph of a quadratic function.
What is a parabola?
The vertex of the quadratic function y = 5x2 + 10x - 2 is a ____________________ point.
What is minimum?
Find the zeroes of the following:
x^2 - 8x - 20
x = 10 and x = -2
If you use completing the square method, what must you add and subtract for the following?
x^2 - 8x - 3
16
The name of the line that divides a quadratic function exactly in half.
What is the axis of symmetry?
Order the following quadratic functions from narrowest to widest:
y=4x2 y=-12x2 y=11x2 y=-2x2
What is y=-12x2, y=11x2, y=4x2, y=-2x2?
What determines whether a function will have a maximum turning point or a minimum turning point?
Whether or not the highest power term is negative.
The coordinates of the y-intercept for the quadratic function y=3x2 + 2x
What is (0,0)?
The point on a quadratic function that will be the maximum or minimum of the function.
What is the vertex?
Order the following quadratic functions from widest to narrowest:
y=4x2 y=2/3 x2 y=-2x2 y=-2/5 x2
What is y=-2/5 x2, y=2/3 x2, y=-2x2, y=4x2
Find the vertex for the quadratic function
y=x2 + 10x + 6
What is (-5, -19)
Find the roots if (x + 3)(2x - 1) = 0
x = -3 and x = 1/2
The domain of the quadratic function y=x2
What is (-∞, ∞)?
For : x^2 - 6x + 5
a) state the zeroes
b) state the vertex
x = 5 and x = 1
Vertex (3, -4)
The coordinates of the vertex for the quadratic function y=x2 - 4x + 8 is ____________________.
What is (2,4)?
What month has 28 days?
All of them!