A graph that displays data that changes continuously over periods of time is
(a) bar graph
(b) pie chart
(c) histogram
(d) line graph

Solution:

A graph that displays data that changes continuously over periods of time is called a line graph.

A line graph represents continuous change in data. An example of a line chart is the graph of the equation y = 2x. Whatever value x will assume, y will be twice the value of x.

In other graphs like bar chart, pie chart and histogram the variable assume discrete values.

✦ Try This: ____________ is a form of representation like the bar graph, but it is used for continuous class intervals: (a) scatter graph, (b) pie chart, (c) histogram, (d) line graph

The correct option is (c) i.e. Histogram.

Histogram is like a bar chart with no gaps between the bars to depict the continuity of the class intervals

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 15

NCERT Exemplar Class 8 Maths Chapter 12 Problem 2

A graph that displays data that changes continuously over periods of time is (a) bar graph, (b) pie chart, (c) histogram, (d) line graph

Summary:

A graph that displays data that changes continuously over periods of time is called a line graph.

☛ Related Questions:

• In the given graph the coordinates of point x are (a) (0, 2), (b) (2, 3), (c) (3, 2), (d) (3, 0)
• In the given graph the letter that indicates the point (0, 3) is (a) P, (b) Q, (c) R, (d) S
• The point (3, 4) is at a distance of (a) 3 from both the axis, (b) 4 from both the axis, (c) 4 from . . . .