Quadratic Equations and Functions

What is the vertex of the parabola: y=2(x-3)²+4

• (3,4)
• (-3,4)
• (3, -4)
• (-3,-4)

What is the range of this function?

• All real numbers.
• All real numbers greater than or equal to 0.
• All real numbers greater than or equal to -2.
• All real numbers greater than or equal to 2.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

CCSS.HSF-IF.C.7A

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes
• Axis of Symmetry
• Direction
• y-intercept

Find the vertex of 
f(x) = -x² - 4x + 12

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

What direction is the following equation opening?
y=-3x²-7x+8

• Up
• Down
• Left
• Right

Tags

CCSS.HSF-IF.C.7A

Joe Mauer hits a fly ball.  You can track the height of the ball using the equation:   h(t) = -16t² + 140t + 2  
What was the starting
                        height of the ball?                                                                                      

• -16 feet
• 140 feet
• 2 feet
• 0 feet

How do you find the vertex?

y = ax² + bx + c

• x = -b/(2a) and plug back in for y

• x = b/(2a) and plug back in for y

• x = -b/a and plug back in for y

• x = b/a and plug back in for y

What is the vertex?

y = 2x² + 12x + 5

• (6,149)

• (-3,-13)

• (3, 59)

• (-6,5)

What is the vertex?

y = 4(x - 7)² - 8

• (7,8)

• (7,-8)

• (-7,8)

• (-7,-8)