Algebra 2 Winter Exam Practice

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What is a perfect square trinomial?

Back

A perfect square trinomial is a quadratic expression that can be factored into the square of a binomial. It takes the form: (a + b)² = a² + 2ab + b².

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What is the vertex form of a parabola?

Back

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If a parabola has a vertex at (10, -4) and passes through (1, 12), how do you find the value of a?

Back

Substitute the vertex and the point into the vertex form equation and solve for a.

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What is the relationship between the coefficients of a quadratic equation and its graph?

Back

The coefficients determine the shape, direction, and position of the parabola on the graph.

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What does it mean for an expression to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of the variable.

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What is the formula for compound interest?

Back

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How do you calculate the future cost of an item with a percentage increase?

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Use the formula: Future Cost = Current Cost × (1 + Rate)^(Years).