Quadratic Equations And Graphing And Intercept Form Worksheets Page 2

�� 1 �� ℎ�� ( �� ) �� ( �� ) = ��

+ 2�� − 3 �� ℎ �� . Write

as ordered pairs and as x=

��. 2 �� ℎ�� ( �� ) �� ℎ�� ℎ ��

a. �� ( �� ) = ��

+ 4�� + 4

Ex.3 A soccer ball is kicked from ground level with an initial vertical velocity of 32 ft/s. After

how many seconds will the ball hit the ground? Also, give the domain and the range for this

real world situation.

Did you know that there is actually a form of a quadratic function where you can see the zeros

Consider �� ( �� ) = ��

+ 2�� − 3. That same function in factored form is �� ( �� ) = (�� + 3)(�� − 1)

without graphing or a table? It’s called factored form or intercept form.

Put �� ( �� ) = (�� + 3)(�� − 1) in the calculator and look at the zeros. How are they related to

this function?

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