This math topic focuses on identifying the y-coordinate of a point on a number line without indicators. It is part of a Cartesian Grid Foundations unit. The problems involve looking at a graphical representation of points on a vertical line and determining their y-values from multiple-choice options. Each question presents a different point labeled 'A' and requires the learner to select the correct y-coordinate from a list of possibilities. This exercise helps in understanding how to read and interpret positions on a Cartesian grid, specifically the y-axis.
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What is the value of 'y' for this point labelled 'A'?