Compare Quadratics

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)

• (-2, -7)

• (2, -7)

• (-7, -2)

What is the formula to find the axis of symmetry of a parabola?

• x = -b/2

• x = -b

• x = -b / (2a)

• x = -b / 2

The vertex of a parabola is at (-3, 5).  Then the axis of symmetry is...

• y = 5

• y = -3

• x = 5

• x = -3

What is the vertex of the quadratic function?

• (-1, -6)

• (-5, 18)

• (0, -7)

• (5, 18)

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

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

• (3,2)

• (-3,-2)

• (-3,2)

• (3,-2)

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• none of these

If red represents y = x², which equation represents blue?

• y = 2x²

• y = -2x²

• y = -x²

• y = (x - 1)²

Which transformation transforms the graph of f(x) = x² to the graph of g(x) = (x + 4)²?

• shift 4 units up

• shift 4 units down

• shift 4 units to the left

• shift 4 units to the right

If the blue graph is
f(x) = x² 
the red must be...

• g(x) = (x + 3)²

• g(x) = (x - 3)²

• g(x) = x² + 3

• g(x) = x² - 2