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IDENTIFYING QUADRATIC EQUATIONS
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A quadratic equation is an equation of the form
ax2 + bx + c = 0 , where a is not equal to 0 .
That is, a quadratic equation must have an x2 term;
it is allowed (but not required) to have an x term;
it is allowed (but not required) to have a constant term.
In this exercise, you will practice identifying quadratic equations.
EXAMPLES:
Question: Is 2x2 = x + 4 a quadratic equation?
Answer: yes
Question: Is 3x - 4 = x + 1 a quadratic equation?
Answer: no (it does not have an x2 term)