Could someone please check to see if i'm right.
without graphing, tell how many x intercepts y= -3x^2+4+4 has
0,1,2,3 intercepts i thinks its 2.

y=2x^2+4x+2
0,1,2,4 intercepts i think its 1.

Thanks

Question

Could someone please check to see if i'm right.
without graphing, tell how many x intercepts y= -3x^2+4+4 has
0,1,2,3 intercepts i thinks its 2.

y=2x^2+4x+2
0,1,2,4 intercepts   i think its 1.

Thanks

nubeer · Answer

nop.. its not 1

anonymous · Answer

x-intercepts are when y=0 right? so solve for 

0=-3x^2+4+4

and

0=2x^2+4x+2

If you've learned the quadratic formula, you can use that to find out how many answers you are. Use b^2-4ac. If it's positive, there are 2 solutions, if it's 0 there is 1 solution and if it's negative there are 0 solutions.

anonymous · Answer

Did i get it 0--3^2+4+4  is 2 intercepts    and  0-2x^2+4+2  has o intercepts