The video tutorial explains the number of solutions possible in systems of equations: one solution, no solution, and infinite solutions. It uses a car speed example to illustrate each case, showing how to identify solutions through graphing and tables. The tutorial emphasizes understanding the conditions for each type of solution, such as parallel lines indicating no solution and overlapping lines indicating infinite solutions.

What is a system of equations?

• A graph with no intersections

• Two or more equations considered together

• An equation with multiple variables

• A single equation with one variable

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CCSS.8.EE.C.8B

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In the example with one solution, what is the speed of the blue car?

• 50 miles per hour

• 30 miles per hour

• 20 miles per hour

• 40 miles per hour

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Why does the blue car have a head start in the one solution example?

• It has a constant added to its equation

• It has a higher speed

• It starts from a different location

• It leaves earlier

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What happens when the red and blue cars meet in the one solution example?

• They continue at the same speed

• They stop moving

• The red car overtakes the blue car

• They cross paths at one point

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In the no solution example, why do the cars never meet?

• They start at different times

• They travel in opposite directions

• They have different speeds

• They have the same speed but different starting points

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CCSS.8.EE.C.8C

What does it mean if two lines on a graph are parallel?

• They represent the same equation

• They intersect at one point

• They have no solution

• They have infinitely many solutions

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CCSS.8.EE.C.8B

In the infinitely many solutions example, what is true about the cars?

• They travel in opposite directions

• They never meet

• They have the same speed and start at the same point

• They have different speeds but start at the same point

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What does it indicate if two lines on a graph overlap completely?

• There are infinitely many solutions

• The lines are parallel

• There is one solution

• There is no solution

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CCSS.8.EE.C.8A

How many types of solutions can a system of equations have?

• Four

• Three

• Two

• One

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CCSS.8.EE.C.8B

What should you do if you see parallel lines in a system of equations?

• Conclude there is no solution

• Check for overlapping lines

• Determine the starting values

• Find the intersection point

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CCSS.8.EE.C.8B