Vertex Form iStart

If given the equation

y = 3(x + 5)² – 12,

what is the vertex of the parabola?

• (5, –12)

• (–5, –12)

• (–15, –12)

• (15, –12)

If given the equation

y = 3(x + 5)² – 12,

what is the axis of symmetry of the parabola?

• x = 5

• x = –5

• x = 3

• x = –12

If given the equation

y = 3(x + 5)² – 12,

what is the y-intercept of the parabola?

• (0, –12)

• (0, 63)

• (0, 5)

• (0, 3)

If given the equation

y = 3(x + 5)² – 12,

what are the x-intercepts of the parabola?

• (5, 0), (–12, 0)

• (–3, 0), (–7, 0)

• (–1, 0), (–9, 0)

• this parabola has no x-intercepts

Given the equation for this parabola:

y = –(x – 4)² – 3,

does this parabola have a maximum or minimum value?

• Maximum

• Minimum

What is the equation of this graph?

• f(x) = (x – 5)² + 1

• f(x) = (x – 1)² – 5

• f(x) = (x + 1)² – 5

• f(x) = (x + 5)² + 1