Lesson on Vertex Form of a Parabola

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

Does the graph of the function

y = -2(x + 5)² + 2

have a minimum or a maximum?

• Minimum

• Maximum

• It has neither.

• It has both.

Tags

CCSS.HSF-IF.C.7A

What is the range of the function?

• y < -1

• y > -1

• y < -2

• y > -2

Tags

CCSS.HSF-IF.C.7A

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up

• (5, 2); opens down

• (-5, 2); opens up

• (-5, 2); opens down

What is the green dashed line called?

• roots or x-intercepts

• parabola

• line of symmetry

• line of dashes

Tags

CCSS.HSF-IF.C.7A

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction
• multiply the x² by a decimal
• multiply the x² by a negative number
• multiply the x² by a number greater than 1

What is the equation of this graph?

• y = (x -5)² + 1

• y = (x - 1)² - 5

• y = (x + 1)² - 5

• y = (x + 5)² +1

Tags

CCSS.HSF-IF.C.7A

Which statement is true about the vertex form equation:

y = 2(x+2)² - 5

• The range is y < -5

• Vertex is (2, -5)

• The graph opens upward

What is the line of symmetry for the following quadratic function:

y =1/2(x-4)²+3

• x = 4

• x = -4

• x = 1/2

• x = 3

Which of the following is the correct equation for the given graph?

• y = (x - 2)² - 1

• y = (x + 2)² - 1

• y = -(x + 2)² - 1

• y = -(x - 2)² - 1

Tags

CCSS.HSF-IF.C.7A