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440
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avatar+44 

Given:

 

My answer:

1.

2.

 

 

As for my solution for 3-5... I do not know how to get them... I tried using the quadratic formula but failed... They say you can solve them by using the vertex formula and you need to graph a parabola in a cartesian plane..

 Sep 15, 2014

Best Answer 

 #6
avatar+102947 
+5

OK...here's No. 3

y ≥ -2x2 -2x + 1

There's not much to  "solve" by hand, here.....a graph of the solution area is more appropriate

 

 

Note that the solution area (in blue) lies "above" and just "touching" the parabola (this is indicated by the "≥" symbol)

I don't know if this is what you're looking for, or not.......

 

 Sep 15, 2014
 #1
avatar+102947 
+5

I'm not seeing anything here.......

 

 Sep 15, 2014
 #2
avatar+44 
0

@Cphill do you know how to do 3-5?

 Sep 15, 2014
 #3
avatar+102947 
0

I don't see any problems on here, Phanolo......!!!!

Can you message me with your problem(s) ???

 

 Sep 15, 2014
 #4
avatar+103674 
+5

I cannot see the diagrams / pictures either.  

 Sep 15, 2014
 #5
avatar+44 
0

Here is a clearer image with examples:

 Sep 15, 2014
 #6
avatar+102947 
+5
Best Answer

OK...here's No. 3

y ≥ -2x2 -2x + 1

There's not much to  "solve" by hand, here.....a graph of the solution area is more appropriate

 

 

Note that the solution area (in blue) lies "above" and just "touching" the parabola (this is indicated by the "≥" symbol)

I don't know if this is what you're looking for, or not.......

 

CPhill Sep 15, 2014

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