+0  
 
0
282
1
avatar

if "y" varies directly with "x", find the constant of variation for an equation containing the following points (-1.5,4.5) and (2.8,-8.4)

Guest Apr 7, 2015

Best Answer 

 #1
avatar+93683 
+10

 

$$\\y=kx\qquad $Where k is the constant of variation$\\\\
4.5=k*-1.5\\\\
4.5/-1.5=k\\\\
k=-3\\\\
check\\\\
-3*2.8=-8.4\quad $Yes that is what it needed to be $$$

Melody  Apr 8, 2015
 #1
avatar+93683 
+10
Best Answer

 

$$\\y=kx\qquad $Where k is the constant of variation$\\\\
4.5=k*-1.5\\\\
4.5/-1.5=k\\\\
k=-3\\\\
check\\\\
-3*2.8=-8.4\quad $Yes that is what it needed to be $$$

Melody  Apr 8, 2015

19 Online Users

avatar
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.