Interpreting Graphs — Quiz

Question 8 • Mathematics 8

Which is a qualitative graph?

Answer

Image with description On a coordinate plane, the horizontal axis is labeled time and the vertical axis is labeled height. From left to right, a segment labeled A starts at the origin and ends at a point that is about 1 fifth of the way across the horizontal axis and 2 eighths of the way up the vertical axis. A segment labeled B starts at the end of segment A and ends at a point that is about 3 fifths of the way across the horizontal axis and 3 eighths of the way up the vertical axis. A segment labeled C starts at the end of segment B and ends at a point that is about 4 fifths of the way across the horizontal axis.

Image with description On a coordinate plane, the x axis goes from negative 5 to 5 in increments of 1. The y axis goes from negative 5 to 5 in increments of 1. A line that extends across the plane passes through (negative 2 comma negative 3) and (3 comma 0).

Image with description On a coordinate plane, the x axis is labeled time and ranges from 0 to 9 in increments of 1. The y axis is labeled height and ranges from 0 to 10 in increments of 1. A segment starts at the origin and ends at a point labeled A at (1 comma 3). A segment starts at A and ends at a point labeled B at (4 point 5 comma 5). A segment starts at B and ends at a point labeled C at (7 comma 0).

Explanation

A qualitative graph shows the general shape or trend of a relationship without giving exact numerical values. Choice A labels the axes as time and height but describes positions only approximately, so it shows how height changes over time rather than specific measurements. Choices B, C, and D use numbered scales or exact coordinates, making them quantitative graphs.

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