We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-1
189
1
avatar+4116 

Help 21,22

 May 15, 2018
 #1
avatar+101872 
+1

21.   

 

This is an ellipse....in standard form, we have

 

x^2   +  y^2      =     1

___     ____

  1         4

 

The domain  is    -1  ≤ x   ≤ 1

The range  is  -2  ≤ y  ≤ 2

 

 

 

22.

 

Vertex =  (0,0)

Focus  (-4,0)

 

So we have

 

4px = -y^2         

 

p  = 4.......so we have

 

4(4)x  = -y^2

 

16x  = -y^2 

 

x  = (-1/16)y^2 

 

 

cool cool cool

 May 15, 2018

13 Online Users