Algebra 1 STAAR Semester Exam Review

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What is a linear function?

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A linear function is a function that graphs to a straight line. It can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

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What is a polynomial?

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A polynomial is a mathematical expression that consists of variables, coefficients, and non-negative integer exponents. Examples include 2x^2 + 3x + 1.

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What is the degree of a polynomial?

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The degree of a polynomial is the highest power of the variable in the expression. For example, in 4x^3 + 2x^2 + 5, the degree is 3.

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What is a trinomial?

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A trinomial is a polynomial that has exactly three terms. For example, 2x^2 + 3x + 5 is a trinomial.

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How do you add polynomials?

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To add polynomials, combine like terms. For example, (-3x + 4) + (8x - 5) = 5x - 1.

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What is the standard form of a linear equation?

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The standard form of a linear equation is Ax + By = C, where A, B, and C are integers, and A should be non-negative.

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What is the slope-intercept form of a linear equation?

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The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

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What is a binomial?

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A binomial is a polynomial that has exactly two terms. For example, 3x + 4 is a binomial.

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What does it mean for a function to be 'not a function'?

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A relation is 'not a function' if it assigns more than one output for a single input. For example, a vertical line test can determine if a graph represents a function.