Post on 01-Apr-2015
THIS
IS
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Graphing Square roots
Completing the Square # of roots Quadratic
FormulaSolve by Graphing
Jeopardy
Which graph is wider?
y = -x2
Or
y = 4x2
HINT: if you don’t know…graph them both and check
A 100
Answer
What is y = -x2 ?
A 100
Return to Questions
Would the vertex of y = -4x2 be a maximum or a
minimum?
A 200
Answer
What is a maximum?
A 200
Return to Questions
A 300
When creating your T-chart to graph y = -4x2, what three
values of x should you pick?
Answer
What are 0, 1, 2?
A 300
Return to Questions
What is the equation for the line of symmetry?
A 400
Answer
What is x = -b / 2a?
A 400
Return to Questions
What is equation for the line of symmetry of y = 3x2 + 12x – 8?
A 500
Answer
What is x = -2?
A 500
Return to Questions
Solve by finding the square roots. If the answer is irrational, round
to the nearest tenth. Write No Solution if there are no real roots.
x2 = 49
B 100
Answer
What is x = 7 or -7?
B 100
Return to Questions
B 200
Solve by finding the square roots. If the answer is irrational, round
to the nearest tenth. Write No Solution if there are no real roots.
3x2 = 15
Answer
What is x = -2.2 or 2.2?
B 200
Return to Questions
B 300
Solve by finding the square roots. If the answer is irrational, round
to the nearest tenth. Write No Solution if there are no real roots.
2x2 + 12= 10
Answer
What is no solution?
B 300
Return to Questions
B 400
Solve by finding the square roots. If the answer is irrational, round
to the nearest tenth. Write No Solution if there are no real roots.
(x + 4)2 = 100
Answer
B 400
What is x = 6 or -14 ?
Return to Questions
B 500
Solve by finding the square roots. If the answer is irrational, round
to the nearest tenth. Write No Solution if there are no real roots.
(2x – 1)2 = 49
Answer
What is x = 4 or -3?
B 500
Return to Questions
C 100
What number must a equal when completing the square?
Answer
What is a = 1?
C 100
Return to Questions
C 200
What value must be added to both sides of the equal sign when
completing the square?
Answer
What is ?
C 200
2
2
b
Return to Questions
Solve by completing the square. If necessary, round to
the nearest tenth.
x2 + 9x = 136
C 300
Answer
What is x = 8 or -17?
C 300
Return to Questions
DAILY DOUBLE
C 400
DAILY DOUBLE
Place A Wager
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C 400
Solve by completing the square. If necessary, round to
the nearest tenth.
x2 – 20x + 32 = 0
Answer
What is x = 18.2 or 1.8?
C 400
Return to Questions
C 500
Solve by completing the square. If necessary, round to
the nearest tenth.
3x2 – 12x = 15
Answer
What is x = 5 or -1?
C 500
Return to Questions
How many roots does the parabola have?
D 100
Answer
What is two?
D 100
Return to Questions
What is the formula for the discriminant?
D 200
Answer
What is b2 – 4ac?
D 200
Return to Questions
Use the discriminant to determine the number of
roots.
2x2 +9x + 1 = 0
D 300
Answer
What are two roots?
D 300
Return to Questions
D 400
Use the discriminant to determine the number of
roots.
x2 – 6x = -9
Answer
What is one root?
D 400
Return to Questions
D 500
Use the discriminant to determine the number of
roots.
x2 + 12 = 6xAnswer
What are zero roots (no solution)?
D 500
Return to Questions
What is the quadratic formula?
E 100
Answer
What is ?
E 100
a
acbbx
2
42
Return to Questions
What value must your equation equal in order to solve using the Quadratic
Formula?
E 200
Answer
What is 0?
E 200
Return to Questions
Solve using the quadratic formula. Round to the nearest tenth if
necessary.
2x2 + 5x + 3 = 0
E 300
Answer
What is x = -1 or -1.5?
E 300
Return to Questions
E 400
Solve using the quadratic formula. Round to the nearest tenth if
necessary.
5x2 + 16x = 84
Answer
What is x = 2.8 or -6?
E 400
Return to Questions
E 500
Solve using the quadratic formula. Round to the nearest tenth if
necessary.
5x2 - 7 = 2x
Answer
What is x = 1.4 or -1?
E 500
Return to Questions
Use your graphing calculator to find the zeros. Round to
the nearest tenth if necessary.
3x2 – 12x + 9 =0
F 100
Answer
What is x = -4 or -9?
F 100
Return to Questions
F 200
Use your graphing calculator to find the zeros. Round to
the nearest tenth if necessary.
x2 – 6x + 12 =0
Answer
What is no solution?
F 200
Return to Questions
F 300
Use your graphing calculator to find the zeros. Round to
the nearest tenth if necessary.
x2 – 6x + 9 = 0
Answer
What is x = 3?
F 300
Return to Questions
F 400
Use your graphing calculator to find the zeros. Round to
the nearest tenth if necessary.
x2 – 5x + 4 =0
Answer
What is x = 1 or 4?
F 400
Return to Questions
F 500
Use your graphing calculator to find the zeros. Round to
the nearest tenth if necessary.
3x2 = -27
Answer
What is no solution?
F 500
Return to Questions
The Final Jeopardy Category is:
Story Problems
Please record your wager.
Click on screen to begin
Click to continue
Suppose you throw a ball in the air. The ball is 6 ft high when it
leaves your hand. Use the equation h = -16t2 + 20t + 6 to
find the maximum height of the ball.
Click on screen to continue
12.25 feet
Click on screen to continue
Thank You for Playing Jeopardy!
Game Designed By C. Harr-MAIT, modified by B. MacDonald