Solving Quadratic Equations

The graph of a quadratic function is called

• a line
• a hyperbola
• a parabola
• a cubic

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

3x² - 4 is a quadratic

• true
• false

Tags

CCSS.HSA.REI.B.4

Which of the following is NOT a quadratic function

• f(x) = -3x²
• f(x) = -5x - x²
• y = 3x³ - 4x + 5
• A = pi.r²

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Does this parabola have a maximum or minimum?

• Maximum
• Minimum

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

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

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

When a parabola opens downward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola