Parts of Quadratic Equations

The formula for the axis of symmetry is:

• y = b² - 4ac

• y = -b/2a

• x = b² - 4ac

• x = -b/2a

The turning point of the quadratic graph is called the:

• vertex

• minimum

• maximum

• axis of symmetry

The vertex that is the highest point of the graph is called the:

• minimum

• axis of symmetry

• maximum

• vertex

Used to determine the number of solutions of a quadratic equation (choose all that apply):

• Discriminant

• axis of symmetry

• d = b² - 4ac

• x = - b/2a

The formula for the discriminant is:

• x = -b/2a

• y = -b/2a

• d = b² - 4ac

• y = ax² + bx + c

Find the axis of symmetry and vertex for

y = -x² - 2x - 8

• x = -1; vertex (-1, 7)

• x = -1; vertex (-1, -5)

• x = 1; vertex (1, -11)

• x = 1; vertex (1, -5)

Find the axis of symmetry and vertex for

y = x² + 6

• x = -3; vertex (-3, 15)

• x = -3, vertex (-3, -3)

• x = 0; vertex (0, 6)

• x = 0; vertex (0, 8)

Using the discriminant, find the number of solutions to y = x² - 10x + 25

• 2

• 1

• 0

Use the discriminant to find the number of solutions to y = -x² - 5

• 2

• 1

• 0

Use the discriminant to find the number of solutions to y = -3x² + 7x + 6

• 2

• 1

• 0