Menu 416 for Quadratics

What are the x- intercepts?

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

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

• (0,3)
• (3,0)
• (0,8)
• Doesn't have one

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

• (0,3)
• (3,0)
• (0,2)
• y=8

What piece of information is easy to identify by looking at the following equation?
y=4(x-4)²-7

• Y-intercept
• Zeroes
• Vertex

Which equation below is a quadratic?

• y=9x+5

• y=3x²-6

• y=5x³+6

• x=3^x

Factor completely
n² + 16n + 63

• (n-7)(n+4)
• (n+7)(n-9)
• (n-3)(n-10)
• (n+7)(n+9)

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1
• f(x) = (x + 2)² - 1
• f(x) = -(x + 2)² - 1
• f(x) = -(x - 2)² - 1

What is the maximum value of the quadratic function f(x) = -2(x - 3)² + 4?

• 4
• 3
• -3
• -2

What is the vertex form of the graph?

• y=(x+3)²-1
• y= (x-3)² -1
• y= (x+1)²-3

The graph below shows h, the height in meters of a model rocket, versus t, the time in seconds after the rocket is launched.  From the graph, what conclusion can be made about the flight of the rocket?

• The height of the rocket was 12 meters a 3 seconds.
• The rocket reached its maximum height after 1.5 seconds.
• The height of the rocket was 0 meters when it was launched.
• The height of the rocket was less than 16 meters after 2 seconds.