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Vocabulary
Graph
Modeling
miscellaneous
100

The turning point of the graph is called 

Vertex

100

Find the vertex of y=x2 +2x - 3

(-1,-4)

100

A ball is thrown into the air with an initial upward velocity of 48 ft/s. It height h in feet after t seconds is given by the function h (t) = – 16t² + 48t + 4.

What height will the ball be when 2 seconds has passed?

36ft

100

Does the graph of the function 

y=3x2-5x open up or down 

up

200

If the vertex is the lowest point on the graph we call it a 

minimum

200

Find the y- intercept of the function

y=x²+2x-3

(0,-3)

200

A ball is thrown into the air with an initial upward velocity of 48 ft/s. It height h in feet after t seconds is given by the function h (t) = – 16t2 + 48t + 4.

in how many seconds will the ball reach its maximum height?

1.5 seconds

200

Find the zeros of the function

y=x2+12x+32

-8 and -4

300

If the vertex is the highest point of the graph we call it a 

minimum

300

Find the x-intercept of the function 

y=x²+2x-3

(-3,0) and (1,0)

300

A ball is thrown into the air with an initial upward velocity of 48 ft/s. It height h in feet after t seconds is given by the function h (t) = – 16t2 + 48t + 4.

What is the ball’s maximum height

40 ft 

300

Does the function 

y=-4x2+2x -5

open up or down

down

400

An imaginary line that goes through the vertex or the graph and cuts it in half 

axis of symmetry 

400

Find the x-intercept of the function 

y=2x²+8x

(-4,0) and (0,0)

400

The path of a baseball after it has been hit is modeled by the function h = – 0.0032d² + d + 3, where h is the height in feet of the baseball and d is the distance in feet the baseball is from home plate. What is the maximum height reached by the baseball?

81 feet 

400

what are the roots of the quadratic 

y=x2-x-2

-1  and 2 

500

U shaped graph 

Parabola 

500

What is the axis of symmetry for the function 

y=2x²+8x

x=-2

500

Suppose you are tossing an apple up to a friend on a third-story balcony. After t seconds, the height of the apple in feet is given by h = –16t² + 38.4t + 0.96.Your friend catches the apple just as it reaches its highest point. How long does the apple take to reach your friend

1.2 seconds 

500

Find the solution to the quadratic 

y=x2-2x -3

x=-1 and x=3