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Misleading Graphs Know the dirty tricks so you wont be deceived
Theres an entire blog! She even had a Bad Graph Contest 2/05/30/winner-of-the-bad-graph-contest- announced-2/
Manipulate the Vertical Axis OriginalVertical axis chopped Magnify differences Distort proportionality
Manipulate the vertical axis OriginalVertical axis extended Everybody seems shorter Tax the rich, spread the poverty
Manipulate the Data Selection OriginalChopped off some years Choose a beginning year to make it look like theres been astounding growth. Or to make it look like theres been little growth.
Manipulate the Horizontal Axis OriginalStretch or compress Make slopes (rates of change) look steeper (compress the axis) or more gradual (stretch the axis)
Graphic Arts Overkill 3-D perspectives that distort plain meaning
More web references – agrams/ agrams/ – chooser-helps-you-choose-charts/ chooser-helps-you-choose-charts/
Section 2.3 Analyzing Graphs HAWKES LEARNING SYSTEMS math courseware specialists Copyright © 2008 by Hawkes Learning Systems/Quant Systems, Inc. All rights.
Finding the Slope of a Line From Two Points. Given the points: (3, 4) and (2, 6) Find the slope of the line. y 2 – y 1 x 2 – x 1 = x 1, y 1 x 2, y 2 6.
Slope. Slope is constant rate of change Slope = change in Y change in X Vertical change Horizontal change.
Example 1 The graph appears to show that Beary Sticks has far less sugar than the other cereals.
Graphing in Science Class. Why do we use graphing? / A useful tool in science / Makes data easier to interpret and make conclusions / Visual characteristics.
Objectives: Explore features of the absolute-value function. Explore basic transformations of the absolute-value function. Standards Addressed: O:
Order of function transformations Horizontal shifts Horizontal stretch/compression Reflection over y-axis Vertical stretch/compression Reflection over.
11.6 Slope. Rate of Change – identifies the relationship between two #’s that are changing Slope – a line’s rate of change Slope formula =
Graphing Function Charts. X Y I Y = 2X + 1 X Y ½ Y - intercept 0, 1 X - intercept -½, 0.
I can find the slope of a line from a table or graph.
Section 3.5 Graphing Techniques: Transformations.
Section 8.3 Enhancement, Distraction, and Distortion Misleading graphs Misleading graphs Scales and axis manipulationScales and axis manipulation Line.
Three Steps To Graphical Analysis Graphs are one of the tools of the trade for Physicists. There are three basic things you can do with a graph. 1. You.
In Lesson 1-8, you learned to transform functions by transforming each point. Transformations can also be expressed by using function notation.
Section 3-2: Analyzing Families of Graphs A family of graphs is a group of graphs that displays one or more similar characteristics. A parent graph is.
Creating Data Tables and Graphs. --All data tables and graphs must have titles. --Units should also be included (where appropriate).
Plotting graphs Drawing best fit lines (or curves) Calculating slope = calculating velocity Describing Motion: Position vs Time Graphs.
3-2 Families of Graphs Pre Calc A. Parent Graphs.
Apply rules for transformations by graphing absolute value functions.
Transforming graphs of functions Graphs can be transformed by translating, reflecting, stretching or rotating them. The equation of the transformed graph.
Chapter 3 – 1 Graphic Presentation The Pie Chart The Bar Graph The Statistical Map The Histogram The Frequency Polygon Times Series Charts Distortions.
Histograms Hours slept Frequency 1 – – – – –
Graphs In your textbook this is from section 1.4 in your textbook.
EXAMPLE 1 Write an equation of a line from a graph SOLUTION m 4 – (– 2) 0 – 3 = 6 – 3 = = – 2 STEP 2 Find the y -intercept. The line intersects the y -axis.
Section 2.4 Representing Data. Graphing Visual display of data Picture demonstrating patterns.
Category: Original Art & Graphic Design #1. Category: Original Art & Graphic Design #2.
Graphing Quadratics. Parabolas x y=x 2 We can see the shape looks like: Starting at the vertex Out 1 up 1 2 Out 2 up 2 2 Out 3 up 3 2 Out 4 up.
Data TablesData Tables Organize data. Neat rows and columns. A place to record data. Communicate to others. Show relationships. Each data item represents.
1-3 TRANSFORMING LINEAR FUNCTIONS CHAPTER 1. WARM UP.
The Linear Function. The word LINEAR means having to do with a straight line. Linear relationships are also called linear functions. What we have learned:
Trig Graphs Investigate the effects of 2sin(x), 2cos(x), 2tan(x) sin(2x), cos(2x), tan(2x) sin(x)+1, cos(x)+1, tan(x)+1 - sin(x), - cos(x), - tan(x) sin(x-30),cos(x-30),tan(x-30)
L ESSON 4: BASIC SOFTWARE TOPIC 17: SPREADSHEETS 1.
2-7 Absolute Value Function Objective: I can write and graph an absolute value function.
Graphing Using Excel AB Volume of Lead (ml)Mass of Lead (g) How to input data into Excel. Units only go in the column title not with.
Graphs Graphs are used to display data. They visually represent relationships between data. All graphs should have a title that identifies the variables.
Section 1.4 Transformations and Operations on Functions.
Holt Algebra Absolute–Value Functions Graph and transform absolute-value functions. Objective An absolute-value function is a function whose rule.
Section 9.3 Day 1 Transformations of Quadratic Functions Algebra 1.
Shelby Sell Sammie Meddaugh Emily Wojahn. Transformation: Functions that map real number to real numbers. Rigid Transformations: Leave the side.
LECTURE 5 10 SEPTEMBER 2009 STA291 Fall Itinerary Graphical Techniques for Interval Data (mostly review) Describing the Relationship Between Two.
Making graphs and using equations of ellipses. An ellipse is the set of all points P in a plane such that the sum of the distance from P to 2 fixed points.
Variable A Variable isanything that may affect (change) the out come of the experiment. In an experiment we are looking for a “Cause and Effect” “Cause.
Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal.
Dr. Michael R. Hyman, NMSU Graphical Representation of Data.
Holt Algebra Absolute–Value Functions An absolute-value function is a function whose rule contains an absolute-value expression. The graph of the.
TRANSFORMATIONS Shifts Stretches And Reflections.
Warm-Up. Slope Slope Objectives: Define slope as the ratio of vertical rise to horizontal run. Determine the slope of a line given a graph. Determine.
Warm-Up Evaluate each expression for x = -2. 1) (x – 6) 2 4 minutes 2) x ) 7x 2 4) (7x) 2 5) -x 2 6) (-x) 2 7) -3x ) -(3x – 1) 2.
EXAMPLE 1 Compare graph of y = with graph of y = a x 1 x 1 3x3x b. The graph of y = is a vertical shrink of the graph of. x y = 1 = y 1 x a. The graph.
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