We need the line plot to answer your question
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Answer:
A) vertical line test
10 1/2 ft=2x-18 in
convert ft to in--10 1/2ft=126 in
126=2x-18
2x=144
x=<em>72 inches or 6 feet</em>
10
Step-by-step explanation:
subtract 5y from both sides of the equation