Key Terms of Quadratic Functions

Find the increasing interval

• x>-1

• x<-1

• x<4

• x>-4

Find the decreasing interval

• x>-2

• x<-2

• x>2

• x<2

What is the minimum of this graph?

• (-2,6)

• (-0.5,-3.5)

• (-1,-3)

• (3,0)

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

Which statement about the graph is FALSE?

• The vertex is also a zero of the function

• The y-intercept is (0, -2)

• The axis of symmetry is x = 2

• The range is y ≥ 0

Find the vertex

• (2, -2)

• x = 2

• (-2, 2)

• (0, 4)

Find the increasing interval

• x<2

• x<0

• x>2

• x>-2

What is the significance of the ordered pair (1, -2) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

What is the significance of the ordered pair (3, 0) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

What is the significance of the ordered pair (0, -1.5) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept