YL A1 Lesson 17-1 Homework

The standard form of a quadratic equation is ​ (a)   . The value of ​ (b)   ​ indicates whether the parabola opens up or down.

• b
• c
• a
• x
• y

If the value of a is ​ (a)   , the graph opens ​ (b)   , like a smile. If the value of a is ​ (c)   , then the graph opens ​ (d)   , like a frown.

• positive
• up
• negative
• down

Does this parabola have a Maximum or Minimum?

• Maximum

• Minimum

A vertex that represents the LOWEST point on a graph is called _____

When the vertex is the HIGHEST point it is called ____

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

A parabola has a vertex at (2,-3).

Where is the equation of the axis of symmetry?

• y = -2

• y = 3

• x = -3

• x = 2

A parabola has a vertex at (-3,2).

Where is the equation of the axis of symmetry?

• y = -2

• x = 2

• x = -3

• y = -3

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1

Use the picture to find the vertex and axis of symmetry:

• Vertex (3,8) Axis x = 3

• Vertex (3,8) Axis y = 3

• Vertex (8,3) Axis x = 3

• Vertex (8,3) Axis y = 3