Solving Quadratic Equations
Math Trivia
Operations with Complex Numbers
Linear-Quadratic Systems
100
The graphs of quadratic equations take the form of a _____.
Parabola
100
What is the only even prime number?
2
100
What is i?
sqrt(-1)
100
The solution(s) of a linear-quadratic system are where the line and the parabola ________.
Intersect
200
What is the standard form for a quadratic equation?
ax^2+bx+c=0
200
For some countries on this continent, 4 considered an unlucky number.
Asia
200
Complex numbers take the form of a+bi. Which is the real part and which is the imaginary part?
a=real, bi=imaginary
200
How many solutions can a linear-quadratic system have?
0, 1, or 2
300
Name two different ways a quadratic equation can be solved.
taking square roots, completing the square, quadratic formula, factoring
300
What is the only temperature that is the same in Celsius and Fahrenheit?
-40
300
What happens when you square i?
You get -1
300
Solve the linear-quadratic system graphically:
Approximately (-1.3, -1.3) and (2.3, 2.3)
400
Solve the quadratic equation:
2x^2-6x-20=0
using the method of your choice.
5 and -2
400
How many seconds are in one day?
86,400 seconds
400
Simplify the complex expression:
(-8-3i)-(-9-5i)
1+2i
400
What would be the first step in solving the linear-quadratic system:
x-6=-1/6y^2
2x+y=6
Solve the linear equation for y:
Y=6-2x
500
Solve the quadratic equation by completing the square.
2x^2+4x-8=0
HINT: remember to get the formula into the form
x^2+bx=c
x=-1+- sqrt(5)
500
What is the sum of all 7 Roman Numerals?
Hint: I, V, X, L, C, D, M
1666
500
Simplify the complex expression:
(7+i)(6-9i)
51-57i
500
Solve the linear-quadratic system:
x-y=7
x^2-y=7
(0,-7) and (1,-6)