Unit 4 Test

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What are the x-intercepts of a function?

Back

The x-intercepts of a function are the points where the graph of the function crosses the x-axis. At these points, the value of y is 0.

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Front

What is the definition of an x-intercept?

Back

An x-intercept is a point on the graph of a function where the output (y-value) is zero.

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What is the process of factoring a quadratic expression?

Back

Factoring a quadratic expression involves rewriting it as a product of two binomials.

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What does it mean to simplify an expression?

Back

Simplifying an expression means to reduce it to its simplest form, making it easier to understand or compute.

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What is the formula for factoring a perfect square trinomial?

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What is the significance of the discriminant in a quadratic equation?

Back

The discriminant determines the nature of the roots of the quadratic equation: if it's positive, there are two real roots; if zero, one real root; if negative, no real roots.