Quadratic functions

What are the x-intercepts?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

What is the significance of the ordered pair (2, -4) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

What is the "c" of this equation? y = 3x² + 7x + 11

• 3

• 7

• 11

• y = (x - 2)² + 2

• y = (x + 2)² + 2

• y = (x - 2)² - 2

• y = -(x - 2)² + 2

What is the vertex of the function   y = (x - 3)² + 5

• (-3, 5)

• (3, -5)

• (-3, -5)

• (3, 5)

Given the equation for this parabola:
 y=-(x-4)²-3,
does this parabola have a maximum or minimum value?

• Maximum
• Minimum
• Not enough information

The standard form of a quadratic function is

• ax² + bx + c
• a(x - h)² + k
• y - y₁ = m(x - x₁)
• Ax + By = C

What is vertex form of a quadratic function

• ax² + bx + c
• a(x - h)² + k
• y - y₁ = m(x - x₁)
• Ax + By = C

If given the equation

y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

What is the "b" of this equation? y = 5x² - 8x + 12

• 12

• 5

• -8