Last of the features quadratic functions

!. What is the vertex of the parabola?

• (-3,0)

• (3,0)

• (18,0)

• (0,18)

What is the equation of the axis of symmetry?

• x = 18

• x = -3

• x = 0

• x = 3

Which of the statements about the graph is FALSE?

• The vertex is a maximum

• The y-intercept is (0,18)

• There are two zeros: x = -3 and x = 3

• The axis of symmetry is x = 3

Which statement about the graph is FALSE?

• The y - intercept of the graph is (0, -2)

• The axis of symmetry is x = 2

• The vertex is the minimum.

• The vertex is also the zero of the function.

Define X-intercept

• The highest or lowest point on the graph

• Where the parabola touches or intersects the x-axis

• Where the parabola touches or intersects the y-axis

• A line that divides the graph into two equal parts. i.e. cuts the graph in half