Solving by Factoring
Solving by Graphing
Quadratic Formula
Quadratic Features
Rando's
100
What property was used for step 2?
zero product property
100
What are the x-intercepts of the following quadratic?
x=-1 or x=-5
100
What does it mean if
b^2-4ac<0
There are no solutions (x-intercepts)
100
Bob threw a basketball across a court. The graph shows the relationship between the horizontal distance of the ball and its height. How far away from Bob did the ball land?
21 feet
100
What is the maximum number of solutions to a quadratic equation?
2
200
Solve by factoring:
x^2-2x-24=0
x=-4 or x=6
200
Sketch a graph of a quadratic that has NO SOLUTION.
**does not touch nor cross x-axis
200
How many solutions are there to the following quadratic equation?
2x^2-5x-11
two solutions
200
What price should a toy be to generate a maximum profit?
$6
200
What is the name of the line that goes through the vertex?
axis of symmetry
300
Solve by factoring:
x^2-5x=0
x=5 or x=0
300
Solve the following quadratic:
x^2-100x-2400=0
x=40 or x=60
300
If the discriminant is equal to zero what feature of a quadratic becomes the solution?
the vertex (max/min)
300
Describe the y-intercept of the following quadratic.
The ball started 5 feet off the ground.
300
What should the value of "a" be in a quadratic equation for the vertex to be a maximum?
a<0
400
Solve by factoring:
x^2=-x+6
x=2 or x=-3
400
Solve the following equation:
h(t)=-16t^2+40t+1.5
t=-.037 or t=2.54
400
What would "c" have to be in order for there to be two solutions?
3x^2-2x+c
c<1/3
400
What is the axis of symmetry for the following quadratic?
x=40
400
Solve the following quadratic equation:
x^2+5x-4x-20
x=-5 or x=4
500
Solve by factoring:
2x^2+20x+50=0
x=-5
500
Solve the following equation:
4800+280x+4x^2=10000
x=-85.249 or x=15.249
500
Solve the following quadratic equation using the quadratic formula:
-5x^2-3x+7
x=-1.521 or x=0.921
500
Describe the x-intercepts of the following quadratic.
If the ticket price is $2 or $16 there will be no profit.
500
What is the quadratic formula?
x=(-b+-sqrt(b^2-4ac))/(2a)