"Question 1 Plot the following points on a graph sheet. Verify if they lie on a line (a) A(4, 0), B(4, 2), C(4, 6), D(4, 2.5) (b) P(1, 1), Q(2, 2), R(3, 3), S(4, 4) (c) K(2, 3), L(5, 3), M(5, 5), N(2, 5)
Class 8 Introduction to Graphs Page 243"
Answers
Graphs are visual representations of data collected. In most cases, the data exists in the form of a table. In many cases, the table itself is displayed.
There are many different types of graphs.
a.Bar graph.
b.Pie graph or pie chart.
c.Line graph.
A linear graph is different from a line graph, in a linear graph, the rest of points on the graph line up in an orderly manner. A linear graph is a graph that consists of a single straight line segment graph obtained by joining the plotted points is a line. Such graphs are called linear graphs.
Graphical representation of data makes it easier to understand the data.
(i) A bar graph is used to show comparison among categories. It may consist of two or more parallel vertical (or horizontal) bars (rectangles).
(ii) A pie graph is used to compare parts of a whole.
(iii) A histogram is a bar graph that shows data in intervals.
A line graph displays data that changes continuously over period of time. A line graph which is a whole unbroken line is called a linear graph. To draw such a line we need to locate some points on the graph sheet
For fixing a point on the graph sheet we need, x-coordinate and y-coordinate. The horizontal line (usually called the x-axis) the vertical line (usually called the y-axis)
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Graph is in the attachment.
a) In this graph all the points lie on the straight line...
b) In this graph all the points lie on the straight line...
c) In this graph all the points do not lie on the straight line...
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Hope this will help you...
Answer:
Step-by-step explanation:
Hope you all understand