GRAPH Definition: A PICTORIAL REPRESENTATION OF INFORMATION RECORDED IN A DATA TABLE. USED TO SHOW A RELATIONSHIP BETWEEN TWO OR MORE FACTORS.

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Presentation transcript:

GRAPH Definition: A PICTORIAL REPRESENTATION OF INFORMATION RECORDED IN A DATA TABLE. USED TO SHOW A RELATIONSHIP BETWEEN TWO OR MORE FACTORS.

DATA TABLE Definiton: AN ORGANIZED WAY OF PRESENTING INFORMATION. Example: POPULATION OF Heddenville 2009-2014 YEAR X # OF PEOPLE Y 2009 250 2010 375 2011 432 2012 628 2013 890 2014 1100 ORDERED PAIR ( X,Y ) EX.( 2009, 250 )

INFORMATION IN A DATA TABLE INDEPENDENT VARIABLE (YEAR) THE FACTOR THAT THE SCIENTIST PURPOSELY CHANGES X-AXIS DEPENDENT VARIABLE (# OF PEOPLE) THE FACTOR IN AN EXPERIMENT A SCIENTIST WANTS TO OBSERVE OR MEASURE Y-AXIS Y-AXIS X-AXIS

TYPES OF GRAPHS 1. LINE GRAPH DEMONSTRATES CONTINUOUS CHANGE USING ONE OR MORE LINES TO CONNECT A SERIES OF POINTS.

STEPS FOR MAKING A LINE GRAPH 1. PLACE THE INDEPENDENT VARIABLE ON THE X-AXIS (horizontal) AND PLACE THE DEPENDENT VARIABLE ON THE Y-AXIS (vertical). 2. USING YOUR DATA TABLE, LABEL THE X & Y AXIS WITH A TITLE. 3. CREATE A SCALE WITH EVEN INTERVALS THAT WILL ACCOMMODATE THE DATA. DO NOT PUT YOUR DATA VALUES AS YOUR SCALE.

STEPS FOR MAKING A LINE GRAPH CONT. 4. PLOT YOUR ORDERED PAIRS USING A PENCIL. GO “OVER” ON THE X-AXIS AND “UP” ON THE Y-AXIS. 5. CONNECT YOUR POINTS WITH A RULER FROM LEFT TO RIGHT. 6. TITLE AT THE TOP OF THE GRAPH THAT REPRESENTS THE X & Y AXIS COMBINED.

SAMPLE LINE GRAPH

NOW IT’S YOUR TURN…CREATE A LINE GRAPH ON YOUR GRAPH PAPER USING A RULER FOR: POPULATION OF HEDDENVILLE 2006-2014 YEAR X # OF PEOPLE Y 2006 250 2007 375 2008 432 2009 628 2010 890 2011 1100

BAR GRAPH 2. USED TO SHOW CHANGE OR FOR MAKING A COMPARISON.

HOW TO MAKE A BAR GRAPH 1. USE AN APPROPRIATE SCALE FOR THE Y-AXIS. 2. LABEL THE X-AXIS WITH APPROPRIATE DESCRIPTORS Ex. Months of Year, Names, Days of Week 3. PLOT DATA USING A RULER TO DRAW BARS 4. SHADE IN BARS AND MAKE A KEY FOR MULTIPLE BAR GRAPHS. 5. LABEL EACH AXIS AND TITLE GRAPH.

SAMPLE BAR GRAPH

NOW IT’S YOUR TURN…CREATE A BAR GRAPH ON YOUR GRAPH PAPER USING A RULER FOR: POPULATION OF HEDDENVILLE 2006-2014 YEAR X # OF PEOPLE Y 2006 250 2007 375 2008 432 2009 628 2010 890 2011 1100