8.1 - Key Features of Quadratics

A quadratic function is in the form of ​ (a)  

Match the following term with the best definition.

• The line of reflection of a quadratic function

• axis of symmetry

• The shape of a quadratic function

• parabola

• The point(s) where it crosses the x-axis

• vertex

• The highest or lowest point

• roots/zeros/x-intercepts

• A

• -4

• C

• 3

• B

• 2

What is the vertex of the given quadratic?

Answer as an ordered pair (x,y).

What is/are the root(s)/zero(s)/x-intercept(s) of the given quadratic?

Choose all that apply.

• (-3, 0)

• (-1, 4)

• (1, 0)

• (-2, 2)

• (2, -5)

Which best describes the axis of symmetry?

​ ​ (a)  

• x = -1
• y = 4
• -1
• -3
• x = -3
• x = 1
• 1

Tags

CCSS.HSF-IF.C.7A

What does a NEGATIVE leading coefficient represent in a quadratic?

• It has a minimum

• It has a maximum

• It has a negative slope

• There is only 1 y-intercept

• The axis of symmetry is on a negative number

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

Tags

CCSS.HSF-IF.C.7A

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

Which of the statements about the graph is FALSE?

• The vertex is a maximum

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

• The y-intercept is (0, 18)

• The range is y ≥ 18