Quadratic Modeling Lesson

Which of the following is vertex form of a quadratic equation?

• y = a(x - p)(x - q)
• y = a(x - h)² - k
• y = a(x - h)² + k
• y = a(x + h)² + k

What is the y-intercept of the equation
y = 2x²+8x+3

• (0,3)
• (3,0)
• (0,2)
• y=8

Where is the AoS (Axis of Symmetry) for 
y = 2x²+4x+2

• x = 2
• x = 1
• x = -1
• x = 4

Is this point a max or min?

• max
• min

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

What does

x=-b/2a find?

• vertex

• y-intercept

• slope

• axis of symmetry

Does the equation open or or down? 
Y = -3x² +7x - 2

• up
• down

Solve
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3