× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
hsedward hsedward
wrote...
Posts: 47
Rep: 0 0
2 years ago
accurately sketch the graph of the equation y= 4/x+1      + 5 using transformation (includes steps such as identifying the parameters, describing parameters,mapping notation, image points
Read 221 times
1 Reply

Related Topics

Replies
wrote...
Educator
2 years ago
All reciprocal functions follow this pattern:

\(y=a\ \frac{1}{k\left(x-d\right)}+c\)

As does your equation: \(y=\frac{4}{x+1}+5\)

Notice that:

a=4 > vertical compression by a factor of 4
d=+1 > horizontal shift to the left by 1
c=5 > vertical shift up 2 units

When it comes to graphing transformations, start by graphing y=1/x. You should know how to graph it using a table of values:

xy
-2-0.5
-1-1
0DNE
11
20.5

Some key anchor points are (-1,-1) and (1,1).

Next apply the 'a' value of 4 by multiplying only the y-outputs by 4:

x4[y]
-2-2
-1-4
0DNE
14
22

Next, we apply the 'd' value of +1. This means we'll subtract 1 from every x-value, while leaving the y-outputs the same:

x-14[y]
-3-2
-2-4
-1DNE
04
12

Finally, we apply the 'c' value of +5 to the y's only:

x4[y]+5
-33
-21
-1DNE
09
17

By plotting these key points successively, you get your transformation.

Please review the following video:

New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1384 People Browsing
Related Images
  
 374
  
 127
  
 84
Your Opinion
What's your favorite coffee beverage?
Votes: 274