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F2. Gradient and intercept
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The straight line, y=mx+c is plotted on a graph. A and B are two points anywhere on the line. The y-intercept of the line is the point where the line crosses the y-axis (the point of intersection of the line and y axis). Use your mouse to move A or B. The y coordinate of this point of intersection has the value c.

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When the equation y=mx+c is plotted on a graph, a straight line is produced. This line has gradient m and y-intercept c.

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