8th Grade Test 6 (Proportional Relationships) Wilkie, Emilce
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The height of a particular oak tree versus its age is shown in the graph.
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Ae
A variety of elm tree grows at a rate modeled by the equation shown in the box, where h is the height of the tree in inches, and y is its age in years.
h 18y
Which tree grows faster, and what is its growth rate, in inches per year?
o the oak: 12
o the oak: 18
o the elm: 12
the elm: 18
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