VOCABULARY
This is the formula for the axis of symmetry.
What is x = -b/2a ?
The vertex of y = 2x2 + 16x - 1 is this ordered pair.
What is (-4,-33)?
The roots of f(x)= x2- 4x - 21 are these numbers.
What are -3 and 7?
What is the direction of opening for the function
y=-3x2+4x+6
What is downwards.
This is the axis of symmetry for the equation y = 2x2 + 8x – 5.
What is x = -2?
y = 4x2+ 7 has its vertex at this point
What is (0,7)?
These are the solutions to the equation x2 - 25 = 0.
What are -5 and 5?
What is the y-intercept of the function:
f(x)= 3x2-6x+21
(0,21)
This is the axis of symmetry for y=3x2+6x-2
What is x = -1?
The vertex of y = x2 is this ordered pair.
What is (0,0)?
Solve: x2 + 8x + 16 = 0.
What is -4?
A rocket is launched from a platform and the equation
y=-16x2+45x+20 represents the flight path of the rocket. What is the height of the platform?
What is 20.
This is the axis of symmetry for y = -4x2 + 3.
What is x=0?
This point is the vertex of y = 2(x+2)2+5.
What is (-2,5)?
The zeros of 2x2 + 4x - 6 = 0 are these.
What are 1 and -3?
A graph of a function intercepts the x-axis twice, how many roots are there for the function?
What is 2
This is the standard form of a quadratic equation.
What is ax2 + bx + c = 0 ?
This is the axis of symmetry for y = -2x2 + 8x + 12.
What is x = 2?
The vertex of y =-(x-4)2-6 is this.
What is (4,-6)?
Solve: x2 + 4x = 0
What are -4 and 0?
What is the y-intercept of the following function:
y=-2(x-3)2+10
(0,-8)