Hello,
A=(-3,1)
A'=(5,5)
O=(0,0)
AA'=5i+5j-(-3i+j)=8i+4j
T=(8,4)
Answer C
Well, if he walks 3 miles in 1hr, then divide the hour by 3 to get one mile in 20 min, then multiply it by 7 to get 2 hours and 20 min to walk 7 miles. Hope his helped!
The correct answer is 2 .....................
D. 5/2! keep in mind that a perpendicular slope is an opposite reciprocal (change the sign and flip the fraction)
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