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  
 
0
222
1
avatar+2448 

Please help asap :)

 Apr 17, 2018
 #1
avatar+101952 
+1

First one -  The first term will determine the end behavoir on both sides....

As x  becomes more and more negative  and positive, "y"  will become more negative in each direction

So  A  is correct

 

Second one -

No

Yes ⇒   (5x - 4) (5x + 4)

No

Yes  ⇒  (5x^2  - 4x)  (5x^2 + 4x)

 

 

Last one   ...the rate of change  (slope) of the function  in the table is  [ 8 - 3 ] /  [ 3 - 2 ]  =  5 / 1   =  5

 

So...we are looking for all slopes > 5.....we want to put each line in the form  y  = mx + b    where m is the slope

 

First one

y = (11/2 ) x  +  5       m = 11/2.....   this is  >  5

 

Second one

-3x + 1/2y  =3     add 3x to both sides

(1/2)y  = 3x + 3      multiply both sides by  2

y = 6x + 6      m = 6 ....  this is > 5 

 

 

Third  one 

(1/9)y = (2/3) x     multiply both sids by 9

y = 9 (2/3)x

y = 6x         m  = 6  .... this is > 5 

 

Last one

We can see right off that 4.5  < 5.......

 

So...the answers are "Yes" to all but the last one

 

 

 

cool cool cool

 Apr 17, 2018

4 Online Users