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Class 8 Mathematics, Chapter 15 - Introduction to Graphs, , © Data presented in a graphical format is easier to comprehend., , 1. To show comparisons between categories, a bar graph is employed., 2. To compare portions of a whole, a pie graph is employed., , 3. A histogram is a bar graph with data displayed in intervals., , 4. A line graph depicts data that is constantly changing throughout time., 5. Alinear graph is a graph that consists of a single continuous line., , © The x -coordinate and y -coordinates are required to fix a point on the, graph sheet., , © A graph depicts the relationship between the dependent and independent, variables., , e@ ABar Graph:, , ° A graphical representation of numerical data made out of uniformly, sized bars (rectangles) with equal spacing., , Each bar's length (or height) symbolises the provided number., , s, ", , °, ., “, , s, , *, , sn, , : i, , nm” a, 220 20.8 228 27 201, , Annual Turnover in %e

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2 APie Graph:, © A pie graph Is a visual representation of how sections of a whole are, compared, © The sectors of the circle symbolise the numerous observations or, components., , Passed Students, , , , diagram in which the class intervals are, , bar, shown on the horizontal axis and the heights of the bars (rectangles), the class interval, but there is no gap between, , , , , , , , , , , , , , , , , , , , , , , , , , 20 30 40 4 8 7D 4 OID, , Scanned with CamSeanner

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© Linear Graph:, A line graph with all of the line segments forming one continuous line., , © Coordinates:, An ordered pair of numbers represents a point on the Cartesian plane., , ® Ordered Pair:, A set of numbers in a predetermined arrangement., , Scanned with CamSeanner