+0  
 
0
93
2
avatar+566 

Which graph represents the polynomial function?

y=x4−6x3−11x2+60x+100

SamJones  Mar 1, 2018
Sort: 

2+0 Answers

 #1
avatar
0

with x =0, you know y=100

so only the bottom two have a point 0,100

then it is trial and error. 

plug in 2 for x and 0 for y, 

if that works then it is the bottom left one.

if not then it is the other one,

you could check the bottom right with -2,0 or 5,0 as well

but 5,0 is an assumption since the 5 isnt labled.

so i would do this

0=(2)^4 - 6(2)^3 - 11(2)^2 +60(2)+100

Guest Mar 1, 2018
 #2
avatar+86622 
+1

If x  =  0...then y = 100

 

Thus....one of the two bottom graphs must be correct

 

Notice in the bottom left graph that 2 appears to be a root.....testing this in the polynomial should produce a result of 0

 

y=2^4−6(2)^3−11(2)^2+60(2)+100   =  144

 

So...the bottom right graph is correct

 

 

cool cool cool

CPhill  Mar 1, 2018

17 Online Users

New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy