[3] U5D8 Review Mix

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What is a system of equations?

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A system of equations is a set of two or more equations with the same variables. The solution is the set of values that satisfy all equations simultaneously.

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What does it mean for a system of equations to have no solution?

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A system of equations has no solution when the equations represent parallel lines that never intersect.

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How do you solve a system of equations using substitution?

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To solve by substitution, solve one equation for one variable, then substitute that expression into the other equation.

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What is the substitution method?

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The substitution method is a technique for solving systems of equations where one variable is expressed in terms of the other.

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What is the elimination method?

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The elimination method involves adding or subtracting equations to eliminate one variable, making it easier to solve for the other.

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What is the graphical interpretation of a system of equations?

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The graphical interpretation involves plotting the equations on a graph; the point(s) where they intersect represent the solution(s).

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The value of y is 16.

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The value of y is -14.

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The value of x is -2.

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The value of x is 0.