I have a practice test I need answers for for future reference?

1: A, B, and C are points on a line with AB = 8.4 inches and BC = 2.9 inches. What is the length of AC if: B is between A and C?


5.5


11.3


6.2








2: A, B, and C are points on a line with AB = 8.4 inches and BC = 2.9 inches. What is the length of AC if C is between A and B?


5.5


11.3


6.2








3: A, B, and C are points on a line with AB = x inches and BC = y inches. What is the length of AC if B is between A and C?


x + y


x - y


xy








4: A, B, and C are points on a line with AB = x inches and BC = y inches. What is the length of AC if C is between A and B?


x + y


x - y


xy








5: For the segment in Problem 1, write a relationship of AC to AB. (Hint: Put AC on one side of the expression and both AB and BC on the other.)


AB = AC -BC


AB = AC + BC


AC = AB + BC








6: For the segment in Problem 1, write a relationship of AC to BC. (Hint: Put AC on one side of the expression and both AB and BC on the other.)


AC = AB + BC


AB = AC -BC


AB = AC + BC








7: If B is a point on the line segment AC, complete the following: AB + BC = ___.


AC


BC


AB








8: If B is a point on the line segment AC, complete the following: AC - BC = ?


AC


BC


AB








9: For questions #9-12, let M be a point on the line segment XY. What is the length of MY if XY = 25.2 inches and XM = 12.6 inches?


37.8


12.6


13.4








10: What may be said about XM and MY in this case?


XM = 2MY


2 XM = MY


XM = MY








11: What may be said about XY and MY?


XY=2MY


XM = 2MY


2 XM = MY








12: If the measurements were in millimeters rather than inches, would the relationships in Part (b) and (c) be changed?


Yes


No


I can't tell








13: Let Q be a point on the line segment PR. If PQ = 2(QR), what is the relationship between PR and QR?


3PQ=2PR


PR=3QR


PQ = 2QR








14: Let Q be a point on the line segment PR. If PQ = 2(QR), what is the relationship between PR and PQ?


3PQ=2PR


PR=3QR


PQ = 2QR








15: In the diagram below, B is on AC and BD = BC. Complete the following statement: AB + BD = ___.


AD


BC


AC

I have a practice test I need answers for for future reference?
you are better off drawing these types of problems...





1.) the line goes: A ______B__C. so AC=AB+BC which is 8.4 +2.9 = 11.3





2.) the line goes A___C___B. so AC = AB - BC which is 8.4-2.9 = 5.5





3.) A___x___B____y___C. so AC = x+y





4.) A_____C___y___B. and the whole line (AB) = x. so AC = x-y.





5.) see number 1.





6.) see number 2...AB=AC+BC





7.) AC





8.) AB





9.) 12.6





10.) XM =MY





11.) XY=2MY





12.) no





13.) PR =3QR





14.) 3PQ=2PR





15.) AC