The points on the coordinate grid below show the locations of the houses of four students in a class. If John's house is at (−0.
4, 0.2), whose house is in the same quadrant as John's?
Ann
Julia
Mike
Harry
Ann
Julia
Mike
Harry
2 answers:
The answer would be Ann's house.
When graphing the point (-0.4, 0.2) you would have to go left (since the x coordinate is negative) 0.4 units. The you would go up 0.2 units, since the y coordinate is positive. After graphing this point you can see that John's house is in the same quadrant as Ann's house, which is the 2nd quadrant.
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Here it is given that the triangles ABP and DCR are similars, therefore we use the ratio rule which states that
corresponding sides of similar triangles are in same proprtion .
that gives
7/10 = BP/11
7*11=10BP
BP=7.7
Again using the ratio rule
7/10 = AP/6
42 = 10AP
AP = 4.2
Perimeter= AB+BP+AP = 7+7.7+4.2 = 18.9
Correct option is A.