Post date: Oct 11, 2012 8:13:07 PM
ANSWER KEY FOR REVIEW 2.1 - 2.4, 2.7, AND SCATTERPLOTS
Corrections: Worked too fast without double checking. Learning opportunity! ~ :)
The Algebra 2 Test Review #4 Page Corrections:
2. y = (5/3) + 4
5. horizontal shift 3 units to the left.
6. y = -3 abs(x-5) + 4
7. It should be the graph of #6. That means it should be going down with a vertex of (5, 4) at a slope of a = -3
Corrections on Scatterplots:
--> The second problem where y = 8x + 1104 ==> y = 1240 and not the number on the previous sheet.
--> Yes, the third problem is a little off but the answer is still C because you come very close to it.
--> The problem about the youth softball team: Answer is D. You have to realize that the years since 1997 are x = 0, 1, 2, 3, and 4. The answer turn out to be y = about 8.97. Since it is closer to 8 rather than 10, the answer is D.