ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Math Videos 91 videos
What is the area of the square in square units?
What is the length of the line segment?
What is the distance between the points (-5, 3) and (3, 9)?
ACT Aspire Math: Funception, a.k.a. Functions within Functions 4 Views
Share It!
Description:
If f(x) = x + 9 and g(y) = -3y, what is f(g(-2))?
Transcript
- 00:02
Okay Mass members more drilling for you Here we go
- 00:04
If f of axes x plus nine and g of
- 00:07
y is negative Three Why What is f of jesus
- 00:10
A bh knew to there Yeah Who a function within
- 00:18
a function It's like that inception of math but with
Full Transcript
- 00:22
less violence right With composite functions like this we have
- 00:25
to start with the innermost function Well the function notation
- 00:29
g of negative to tells us to input the value
- 00:31
Negative too for why in the equation given for g
- 00:34
of why so g of negative too is negative Three
- 00:37
time thinking of two which is just six So since
- 00:39
g of negative two is six we're gonna replace the
- 00:42
innermost function with that value So stick a six right
- 00:45
in there The problems should no longer read half of
- 00:48
jesus Avner You're too but rather looking more presentable as
- 00:51
f of six So next we find the value of
- 00:54
f of six which is well Mm six is six
- 00:57
plus nine which is fifteen No weird dreams of inception
- 01:02
necessary of the answers Just d
Related Videos
Which of the following sentences provides the best description of the events in the passage?
Lucy runs to the edge of Kensington Gardens because...
Immediately before Lucy lays her hand on her father's knee, she was...
In contrast to Lucy's reaction to the lady, Mr. Rayburn's reaction is characterized by:
Mr. Rayburn is most likely reading the newspaper in order to: