Factor a quadratic expression to reveal the zeros of the function it defines - HiSet: High School Equivalency Test: Math
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Question
A quadratic function 
has two zeroes, 3 and 7. What could this function be?
A quadratic function 
Answer
A polynomial function with zeroes 3 and 7 has as its factors 
and 
. The function is given to be quadratic, so this function is
.
Apply the FOIL method to rewrite the polynomial:
Collect like terms:
,
the correct choice.
A polynomial function with zeroes 3 and 7 has as its factors 
Apply the FOIL method to rewrite the polynomial:
Collect like terms:
the correct choice.
Compare your answer with the correct one above
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