Quadratic Equations can have at most ____ solutions
2
2x(x-4)=0
x=0 and x=4
x^2=1600
x=40 and x=-40
x^2+6x=-8
x=-4 and x=-2
How do you know an equation is quadratic?
It has a degree of 2 (highest exponent is 2)
What date will you be taking your unit test?
11/15
Identify the solution(s) to the following quadratic equation.
x=2
x^2-6x+5=0
x=1 and x=5
x^2+5=-20
x=5i and x=-5i
x^2-9x+6=0
x=(9+sqrt57)/2 and x=(9-sqrt57)/2
What does i equal?
sqrt(-1)
What is my first name?
Richard
Solving for a quadratic equation means to solve for ____ when ______.
x; y=0
9x^2-24x=0
x=0 and x =8/3
x^2-1=39
x=2sqrt(10) and x=-2sqrt(10
-2x^2+7x=3
x=3 and x=1/2
What does the symbol +/ mean?
That the solution to a quadratic equation takes on both a positive and negative value
This artist just released their new single "Disease" and recently appeared in the film Joker: Folie a Deux
Lady Gaga
What is the standard form of a quadratic equation?
ax^2+bx+c=0
2x^2=x^2+8x+20
x=10 and x=-2
2x^2-196=0
x=7sqrt2 and x=-7sqrt2
4x^2+76=16x
x=2+isqrt15 and x=2-isqrt15
What is b^2-4ac called and what does it tell you?
The discriminant. It determines the number and type of solutions. Can also be used to identify the best option for solving a quadratic equation
What are the only mammals that can fly?
Bats
What form(s) is (3x-2)^2 in? What are the zeros of the function?
Vertex and Factored;
x=2/3
2x^2-3=5x
x=-1/2 and x=3
(x+5)^2=49
x=2 and x=-12
x^2-9x+6=0
x=(9+sqrt57)/2 and x=(9-sqrt57)/2
A toy rocket is launched vertically upward from a 12 ft platform with an initial velocity of 128 ft per second. Its height, h, at the time t seconds is given by the equation h(t)=-16t^2+128t+12 . How long will it take the rocket to reach the ground?
about 8.09 seconds
List two of the top 5 highest grossing movies
Avatar (1 and 2)
Avengers Endgame
Titanic
Star wars the force awakens