Finding the Vertex of Quadratics Using Desmos

Identify the vertex

• (-1,-9)

• (0,-8)

• (-4,0)

• (0,0)

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)

• (-3,-2)

• (-3,2)

• (3,-2)

Does this graph have a maximum or minimum?

• Minimum

• Maximum

Tags

CCSS.HSF-IF.C.7A

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

Tags

CCSS.HSF-IF.C.7A

A graph of a quadratic function is shown. What is the vertex of the function?

The table of a quadratic function is shown.

Create the ordered pair that represents the vertex of the quadratic.

( ​ (a)   , ​ (b)   )

• -2

• -6

• -3

• -5

• -4

• -1

• 0

• 1

• 3

( ​ (a)   , ​ (b)   ​ )

• 9

• 0

• 3

• -9

• -3

Label parts of this function.

a

b

c

d

Zero(-)

Y-intercept

Vertex

Zero (+)

Tags

CCSS.HSF-IF.C.7A

What is the vertex of this function?

a

b

c

d

Zero (+)

Y-intercept

Vertex

Zero(-)

Using Desmos, graph y = 2x² + 4x - 3 and identify the max or min.

• Max: (-1, -5)

• Min: (-1, -5)

• Max: (-5, -1)

• Min: (-5, -1)

Tags

CCSS.HSF-IF.C.7A