Table to draw for warm-up:

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Presentation transcript:

Table to draw for warm-up: Hair Color Number of Students Blonde 1 Brown 6 Black 3

Warm-up Name Height Juan 170 cm Bre’nai 165 cm Sarah 175 cm Note: You do NOT have to write words in green. What is the average height for the following group? Show your work. Draw the table from the side board. What is the total number of students? What percentage of the class has brown hair? Show your work. Name Height Juan 170 cm Bre’nai 165 cm Sarah 175 cm

Labeling your Notes/Work Name: Period: Date: “Lecture Title”

Lecture #2: “Constructing a Graph” Recall: “Ordered Pairs” (X,Y) coordinates “Variables” X & Y variety They “Change” Recall: Bar graph can have labels on X-Axis

Y Y-AXIS “X-AXIS” X LABELING “AXES” Clearly LABELED graphs are less likely to be read incorrectly! Y Y-AXIS VERTICAL HORIZONTAL “X-AXIS” X

Street Race Example: Y GRAPH how FAST a car is going at certain TIMES. What are the variables? Units? X-axis? Y-axis? X

Labeling the Axes… TIME SPEED Manipulated Variable Responding Variable YOU control X-axis Horizontal Responding Variable OBSERVED Y-axis Vertical TIME SPEED “Independent variable” “Dependent Variable”

Scale & Size Scale How much each unit along axis represents. 50 40 30 20 10 5 4 3 2 1

SCALE affects GRAPH SIZE!