Module 3 Review (8th Grade)

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9

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Which equation can determine the number of cars sold, $x$, for equal income from Company A and Company B?

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3500 + 275x = 3000 + 350x

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No Solution

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CCSS.8.EE.C.7A

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Solve the equation -2.7x + 3.5 = 1.3x + 11.5. What is the solution?

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-2

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15

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What is a linear equation?

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CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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What does it mean for an equation to have no solution?

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It means that there are no values for the variable that can satisfy the equation.

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CCSS.8.EE.C.7A

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Isolate x by subtracting b from both sides and then dividing by a.

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CCSS.7.EE.B.4A

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What is the significance of the slope in a linear equation?

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The slope indicates the steepness of the line and the direction of the relationship between variables.

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CCSS.8.EE.B.5

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What is the difference between a solution and a root of an equation?

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A solution is a value that satisfies the equation, while a root specifically refers to the x-intercepts of the equation.