Vocab
Which is...?
Parabola
Quadratic Function
100
When using a term like x2, t2, or n2 in expressions we call them _____ expressions
Quadratic Expression
100
A soccer ball is kicked into the air, and its height is modeled by the equation:
h(t)=-4.5t^2+30t+3
Which is the initial height?
3
100
What was the initial height of this object?
0
100
h(t)=-4.5t^2+5t+4
Solve for h(1)
4.5
200
When graphing a quadratic function the shape of the curve is called a _______
Parabola
200
In a video game, a character shoots an arrow, and its height (in blocks) over time (seconds) is modeled by:
h(t)=−4.9t^2+20t+2
Which is the gravity?
-4.9
200
When did this object land in t seconds
4 seconds
200
h(t)=-4.5t^2+2t+7
Solve for h(0)
7
300
The middle point of a parabola is called the _____
Vertex
300
A baseball is hit, and its height is given by:
h(t)=−4.5t^2+55t+4
Which is the initial velocity?
55
300
When did this object reach its peak?
1 second
300
h(t)=-4.5t^2+25t+16
Solve for h(5)
28.5
400
When looking at the zeros of a quadratic function, they are also known as _________ intercepts
Horizontal
400
If your object is being launched from the ground, what is the initial height?
0
400
Where did this object reach its peak?
8.5
400
h(t)=-4.5t^2+2t
Solve for h(100)
-44800
500
The point that crosses the vertical axis of a graph is called the ________ intercept
Vertical
500
A drone launches upward, and its height in meters over time is modeled by:
h(t)=−4.9t^2+25t+7
Which is the gravity?
Which is the initial velocity?
Which is the initial height?
Gravity: 4.5
Initial Velocity: 25
Height: 7
500
How long was this object in the air for?
2
500
h(t)=-4.5t^2+100t+66
Solve for h(5)
453.5