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)?
What do you add to both sides when you are solving by completing the square?
(b/2)^2
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)?
This is the number that completes the square in the quadratic equation x2 + 8x - 3 = 0
What is 16?
The number of times a quadratic function will cross the x-axis if it has two real solutions.
What is two?
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)?
This is the number that completes the square in the equation
x2 - 22x = -3.
What is 121?
The number of times a quadratic function will cross the x-axis if it has no real solutions.
What is zero, none or never?
These are three names for the place or places a parabola crosses the x-axis.
What are x-intercepts, 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)?
Solve by completing the square.
x²+2x = 8
What is x = x = 2 , x = -4
Determine the roots of the following graph.
What are -2 and 1?
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 = -4x2 + 3 is this.
What is (0,3)?
Solve by completing the square: x2 + 14x + 24 = 0
x= -2 and x= -12
FINAL JEOPARDY: Determine the roots by graphing:
y = 2x2 - 12x + 16
What are 2 and 4?