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Published byRyleigh Garrett Modified over 2 years ago

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This vertical line is called the y-axis. y

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This horizontal line is called the x-axis. y x

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The x-axis and y-axis separate the coordinate plane into 4 parts. y x

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These parts are called Quadrants. y x

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Quadrant I y x Quadrant II Quadrant IIIQuadrant IV

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y x Each line has a number associated with it. Just like the dashes on a number line.

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y x

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y x origin This point in the middle of the x-axis and y-axis is called the origin.

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y x There are many other points on the coordinate plane.

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y x These points are described by ordered pairs.

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An ordered pair is a set of parenthesis with two numbers inside. The numbers are separated by a comma. ( 1, 3 )

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The first number is called the x- coordinate.

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( 1, 3 ) The second number is called the y- coordinate.

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( x, y )

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( 1, 3 ) Now, let’s graph this ordered pair on the coordinate plane.

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y x ( 1, 3 )

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y x Let’s graph (plot) more points.

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y x ( 2, 5 )

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y x Quadrant I

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y x (-3, 4 )

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y x Quadrant II

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y x (4, -1)

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y x Quadrant IV

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y x (-5, -3)

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y x Quadrant III

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y x (-2, 0)

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y x Not in any quadrant. This point is on the x-axis.

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y x (0, 4)

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y x Not in any quadrant. This point is on the y-axis.

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y x (0, 0) (0,0) is the origin.

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y x ABDCEF

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y x (5, 4) BDCEF

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y x (1, 2) DCEF

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y x (5, 4) (1, 2) D (-4, 3) EF

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y x (5, 4) (1, 2) (-3, -1) (-4, 3) EF

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y x (5, 4) (1, 2) (-3, -1) (-4, 3) (4, 0) F

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y x (5, 4) (1, 2) (-3, -1) (-4, 3) (4, 0) (2, -3)

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A scatter plot looks like a line graph without the lines. We just place the dots or in other words, we plot the points.

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Construct a scatter plot to show the relationship between the hours spent practicing shooting darts and the dart shooting score. Practice Time (hours) Dart Shooting Score BOTTOM SIDE

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Construct a scatter plot to show the relationship between the hours spent practicing shooting darts and the dart shooting score.

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Practice Time (hours) Dart Shooting Score

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Construct a scatter plot to show the relationship between the hours spent practicing shooting darts and the dart shooting score.

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Practice Time (hours) Dart Shooting Score

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Construct a scatter plot to show the relationship between the hours spent practicing shooting darts and the dart shooting score.

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Explain the relationship shown in the scatter plot.

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The more time spent practicing, the higher the score.

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Complete problems # 1 – 20 for homework. Use Graph Paper for ALL graphs.

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