What are the x-intercepts of the quadratic function?

y = x2 + x – 2

A.
2 and 1

B.

–2 and 1

C.

2 and –1

D.
1
A ?

Question

What are the x-intercepts of the quadratic function?

 

        y = x2 + x – 2 
 
 
 

 

 
  

  A. 
  2 and 1   
   

 

 
  

  B. 
 
–2 and 1
   
   

 

 
  

  C. 
 
2 and –1
   
   

 

 
  

  D. 
  1  
A ?

anonymous · Answer

it's x^2

radar · Answer

Solve by inspection.  What value is x for y to = 0?

radar · Answer

Note the answers only involve 1, -2, -1, or 2
  start out testing the 1.

radar · Answer

Don't be shy.  I will test the '1'.
1^2 + 1 - 2=
1 + 1 -2 =
2-2=0 y=0  That eflatt13 is a winner, but there is still one more.  Can you find it?

superhelp101 · Answer

sorry to bother you radar, but can you help me when you're done. I would appreciate it much! thanks! again sorry to bother you, only question i have, i promise

radar · Answer

No problem @superhelp101, I may be of some help, but am not infallible.