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
199
4
avatar+233 

Which graph represents the function?

 Jan 26, 2019
 #1
avatar+103917 
+2

x^2 - x - 2

 

Let's find the zeroes (where the function crosses the x axis)

 

Factor as

 

(x - 2) ( x + 1)  = 0

 

Set each factor to 0  and solve for x

 

x - 2 = 0                             x + 1 =  0

 

 x = 2                                    x = -1

 

Notice that the graph on the bottom left appears to be correct  !!!!

 

 

 

cool cool cool

 Jan 26, 2019
 #3
avatar+233 
+1

thank you 

skye25  Jan 26, 2019
 #2
avatar+48 
+3

the left corner one should be the answer because...

f(x)=x^2-x-2

 

f(0) = 0^2-0-2 which is -2      plug numbers in

 

the bottom left is the only one with points (0,-2)

 

smiley  

(CPhill's  is much more mathematical lol)

 Jan 26, 2019
 #4
avatar+233 
+1

thank you

skye25  Jan 26, 2019

39 Online Users

avatar