Three lamp posts stand along one straight road, at (-1… | StemPy Lab

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Three lamp posts stand along one straight road, at (-1… | StemPy Lab

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Three lamp posts stand along one straight road, at (-1, 4), (2, k) and (8, 16) on a map grid. Find k.

MathematicsMediumHigh School (11–12)Coordinate Geometry

Created by StemPy Lab

Three lamp posts stand along one straight road, at $(-1, 4)$ , $(2, k)$ and $(8, 16)$ on a map grid. Find $k$ .

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← Two straight fences are parallel. One runs between the posts (-2, 1) and (0, 5). The other joins a post at (1, k) to a post at (4, 5). Find k.Line p has slope 1 and line q has slope 1/3. They cross. Find the tangent of the acute angle that they enclose. →

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