8th Grade Math Check-In #1 Review

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What is the algebraic rule for reflecting a point across the x-axis?

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The rule is (x,y) --> (x, -y).

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What is the value of x if the answer choices are 13, 6.2, 29.8?

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Add 6 to both sides and divide both sides by 5.

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Subtract 3 from both sides.

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What does it mean to solve an equation?

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Finding the value of the variable that makes the equation true.

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What is the formula for the slope of a line given two points (x1, y1) and (x2, y2)?

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