Complex Numbers and Quadratic Functions

Front

What is a complex number?

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A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit, defined as the square root of -1.

Front

What is the imaginary unit 'i'?

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Front

What does the discriminant of a quadratic function indicate?

Back

Front

If a quadratic function has a discriminant of 4, how many x-intercepts does it have?

Back

It has 2 x-intercepts.

Front

What is the quadratic formula?

Back

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Front

What is the standard form of a quadratic function?

Back

Front

What is the vertex of a quadratic function?

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