+0  
 
+3
60
4
avatar+1720 

Please help me understand how to do these types of problems~

RainbowPanda  Aug 21, 2018
 #1
avatar+2983 
+3

Inverse function: Switch the x and y. First one: (1,-3), (-3,1)

tertre  Aug 21, 2018
 #2
avatar+1720 
+2

That is all I have to do? ouo there is no way it's that simple xD

RainbowPanda  Aug 21, 2018
 #3
avatar+88775 
+3

To  find the inverse  just  reverse the co-ordinates

So...for the first one, we have

(-3, 1), (3, - 2), (1, 5),  ( 4, 6)

It's a function as long as no two different y values are paired with the same x value

[ In other words...an x value cannot be paired with two different y's ]

This doesn't happen, so the inverse is a function

 

For the second, we have

(7, - 5), (-8, -6), (-2,1) , (3, 10)

No two different y's are paired with the same x value, so this is also a function

 

 

cool cool cool

CPhill  Aug 21, 2018
 #4
avatar+1720 
+2

Got it! Thank you~

RainbowPanda  Aug 21, 2018

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