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?
A parabola will look like a __________ if a is negative. In this case, it's vertex would be a __________ (maximum or minimum?).
What is a frown (open downwards) with the vertex as a maximum?
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?
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?
These are four names for the place or places a parabola crosses the x-axis.
What are x-intercepts, solution, roots and zeros?
This is the axis of symmetry for y = -4x2 + 3.
What is 0?
This point is the vertex of y = -3x2 + 18x - 13.
What is (3,14)?
The zeros of 2x2 + 4x - 6 = 0 are these.
What are 1 and -3?
This is the axis of symmetry for y = -2x2 + 8x + 12.
What is x = 2?
The vertex of y = -4x2 + 3 is this.
What is (0,3)?
Solve: x2 + 4x = 0
What are -4 and 0?
FINAL JEOPARDY: Determine the roots by graphing: y = 2x2 - 12x + 16
What are 2 and 4?