Tangent lines and slople along a curve.docx - 7 Tangent...

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7. Tangent lines and the slope along a curve .Points:1 / 1Close ExplanationExplanation:The slope of a line measures how much the vertical coordinate of the line changes in relation to the horizontal coordinate. Therefore, since the blue line shows the relationship between altitude and time, the slope of the blue line measures how quickly altitude changes over time; in other words, it measures the rate at which the plane is descending.In this case, the rise, or vertical change, is measured in thousands of feet; and the run, or horizontal
change, is measured in minutes. Therefore, the unit of the slope is most appropriately thousands of feet per minute.

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