Today we went over your assignment from page 99, dealing with inverse functions. We got through most of the assignment but will begin tomorrow by completing problem #24. You should rework this problem before class. Remember that there are two methods for solving these problems, and in situations like #23 and #24 you should use the gof and fog methods as discussed in class. If you were not in class please refer to the book for examples (pg. 93-99).
I have decided that the test will be moved to WEDNESDAY, October 10th. Please begin studying now because we will move on to new material starting Monday!
Coming up:
- TEST: Wed. October 10th (remember that the test is cumulative)
- No Homework, but begin studying!
Posting for Points:
What is the BEST method for determining if one given equation is the inverse of another inverse equation?
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11 comments:
See if (f o g)(x) and (g o f)(x) both equal x.
plug it into the fog and gof formulas and see if they both are equal to x
plug into (fog)(x) and (gof)(x) and if htey equal x then they are inverse functions.
plug into fog(x) and gof(x). If both equal out to x then they are inverse functions.
use (fog)(x) and (gof)(x) and see if they both equal x and if they do then they are inverses.
plug into fog(x) and gof(x)and if both of the answers equal (x) then they're inverse
check whether (fog)(x) and (gof)(x) both equal x
Whoops, answered the wrong question with that last post.
You gotsa do the fOg and gOf formulas to find if they both equal X.
I love blogs, makes us feel like a unified math class.
due (fog) or (gof) to determine if they are inverses
you have to see if fog(x) and gof(x) both equal x. if they both equal x, then they are inverse functions.
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