+0  
 
0
3504
8
avatar+279 

Above is DAbove is C


 


Below is B :)



Above is A


 


 


I Truly Apologize For the Scatter and Unorganzitation Of this Graphs! I appreciate and Love all Help. :) Now Below Is the Question :)


A manufacturer is designing a two-wheeled cart that can maneuver through tight spaces. On one test model, the wheel placement (center) and radius is modeled by the equation (x + 1.5)2 + (y + 1)2 = 9. What is the graph that shows the position and radius of the wheels?


The order of Graphs is D C B and A

 Jun 18, 2014

Best Answer 

 #8
avatar+33616 
+5

Each little dotted square in your graphs has sides of length 2 units.  This makes the radius of the circle in the top graph close to 5 units, so it's too big to be the one described by the equation.

 Jun 18, 2014
 #1
avatar+33616 
+5

Well, from the equation we can see that the circle is centred at (-1.5, -1) and has a radius of 3.

Can you work out which one it is now?

 Jun 18, 2014
 #2
avatar+279 
0

The Second One to The Bottom?

 Jun 18, 2014
 #3
avatar+33616 
+5

Can't be the second one from the bottom as its centre has a positive x-value.

 Jun 18, 2014
 #4
avatar+128579 
+5

I think it's the last one, natasza....although it's a little hard  to tell. Notice that the center is (-1.5, -1)

Then, since the radius is 3, count 3 units up from the center and y =2. Count three unts down and y = -4. The last graph is the only one that has these characteristics...

 

 Jun 18, 2014
 #5
avatar+279 
0

Oh! So It Will Be that Biggest Circle, At the top?

 Jun 18, 2014
 #6
avatar+33616 
+5

What is the radius of the circle in the figure at the top?

 Jun 18, 2014
 #7
avatar+279 
0

That is Hard CPhill! :(
Sorry Alan...I am Awful With this

 Jun 18, 2014
 #8
avatar+33616 
+5
Best Answer

Each little dotted square in your graphs has sides of length 2 units.  This makes the radius of the circle in the top graph close to 5 units, so it's too big to be the one described by the equation.

Alan Jun 18, 2014

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