Identifying Solutions to Systems of Equations

Front

What is a system of equations?

Back

A set of two or more equations with the same variables that are solved together.

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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What does it mean if a system of equations has one solution?

Back

The graphs of the equations intersect at exactly one point.

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CCSS.8.EE.C.8A

Front

What does it mean if a system of equations has no solutions?

Back

The graphs of the equations are parallel and never intersect.

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CCSS.8.EE.C.8A

Front

What does it mean if a system of equations has infinitely many solutions?

Back

The equations represent the same line, so every point on the line is a solution.

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CCSS.8.EE.C.8A

Front

How can you determine the number of solutions in a system of equations?

Back

By analyzing the slopes and y-intercepts of the equations.

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CCSS.8.EE.C.8B

Front

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

Back

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CCSS.8.EE.B.6

CCSS.8.F.A.3

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

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The slope indicates the steepness and direction of the line.

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CCSS.8.EE.B.5

Front

How do you find the solution to a system of equations graphically?

Back

By plotting the equations on a graph and identifying the point(s) of intersection.

Tags

CCSS.8.EE.C.8B

Front

What happens when you graph the same equation twice?

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You will have infinitely many solutions, as the lines overlap.

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CCSS.8.EE.C.8A

Front

Back

A straight line with a slope of 3 and a y-intercept of 2.