Vertex Form

What is the vertex of the parabola?

 $f\left(x\right)=3\left(x+5\right)^2-4$  

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

Does this parabola have a maximum or minimum value?

 $f\left(x\right)=-(x-4)^2-3$  

• maximum

• minimum

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• end point

What is axis of symmetry for this parabola?

• x = 1

• x = -1

• x = 5

• x = -5

Identify the vertex of the parabola.

 $f\left(x\right)=\frac{1}{4}\left(x+5\right)^2+2$  

• ( $\frac{1}{4}$ , -5)

• (5, 2)

• (-5, 2)

• ( $\frac{1}{4}$ , 2)

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

Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

Which equation has a vertex of (-3, 4)?

• f(x) = 2(x + 3)² + 4

• f(x) = (x + 3)² - 4

• f(x) = (x - 3)² + 4

• f(x) = 2(x - 3)² + 4

What is the axis of symmetry of the parabola?

 $f\left(x\right)=-2\left(x-1\right)^2+4$  

• x = 4

• x = -4

• x = 1

• x = -1

What is the vertex form of a quadratic function?

• f(x) = 2a(x - h)² + k

• f(x) = a(x - h)² + k

• f(x) = (x + h)² + k

• f(x) = a(x - h) - k

What are the transformations the graph f(x) = x² to f(x) = 2(x + 2)² - 5?

• Compress by 2, shifted 2 units left and 5 down

• Stretch by 5, shifted 5 units left and 2 down

• Stretch by 2, shifted 2 units left and 5 down

• Compress by 5, shifted 2 units left and 2 down