+0  
 
0
136
1
avatar+946 

 

I get f(x) = -2x+5. Is that correct? 

Julius  Feb 18, 2018
 #1
avatar+88898 
+2

We have the points  (2,1)  and (3, -1)  on the graph

 

The slope is    [ - 1 - 1 ] / [ 3 - 2 ]  =  -2/1  =  - 2

 

Using either point to write the equation of a line, we have

 

f(x)  = -2 (x - 2) + 1

 

f(x)  =  -2x + 4 + 1

 

f(x)  = -2x  + 5    .....correct Julius  !!!!

 

 

cool cool cool

CPhill  Feb 18, 2018

8 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.