Vocabulary
Every quadratic equation has a U-shaped graph called this.
What is parabola?
x2- 3x + 1 = 0
What is standard form?
Name the vertex y= (x-3)2 +4
What is (3,4)?
Parent function translated 2 units to the left and 5 units down .
y = (x+2)2-5
y= (x+1)2 - 8
What is (-1, -8)?
Which point lies on the parabola y = 2(x + 3)(x - 2)?
A. (1, 8)
B. (10, 2)
C. (2,0)
D. (-2,0)
What is C. (2,0)
When a quadratic equation is written in this form y = ax2 +bx + c
What is the standard form?
5x2 + x - 1 = 0
What is standard form?
Name the x-intercepts. y=x2 - 4
What is (-2,0) and (2,0)?
Which of the following functions would not have a parabola for its graph?
A. y + 9 = (x - 3)2
B. y = (x -3)(x +3)
C. y = x(4 - x)
D. y2 + x2 = 9
What is D
y2 + x2 = 9
This is the number before the x2 that determines whether a parabola opens up or down.
What is the leading coefficient?
y = 2(x-1)(x+7)
What is factored form?
Name the x-intercepts y=x2 - x - 2
What is (-1,0) and (2,0)?
Name the vertex x2 - 4x - 5 = 0
What is (2,-9)?
Little Nina is standing at the top of a lighthouse. She is 96 feet above the ocean. She tosses a ball into the air. The height, h, of the ball after x seconds is given by
h = - 16t2 + 64t + 96.
What is the ball’s height after 0.5 seconds?
What is 124 feet
The line that runs through the vertex and divides the parabola in half.
What is axis of symmetry?
y = - 1/2 (x + 7) - 4
What is vertex form?
Name the x-intercepts. y= (x-1)2 + 1
What is None?
Name the vertex 2x2 + 4x - 6 = 0?
What is (-1,-8)?
Little Nina is standing at the top of a lighthouse. She is 96 feet above the ocean. She tosses a ball into the air. The height, h, of the ball after x seconds is given by
h = - 16t2 + 64t + 96.
How many seconds does it take to reach maximum height? What is the maximum height?
What is 2 seconds
what is 160 feet