In the image, two circles are centered at A. The circle containing B was dilated to produce the circle containing B′. What is th
e scale factor of the dilation?
A) 1
B) 2
C) 0.5
D) -0.5
A) 1
B) 2
C) 0.5
D) -0.5
2 answers:
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The sum of the inside angles of a triangle, always sum up to 180 degrees. Using this information, we can create the following equation for this problem:
Adding up all terms with 'x' and adding the other together, we have the following equation:
Solving this last equation for 'x', we have the following:
Then, the final answer for the 'x' value is twelve!
Answer:
Step-by-step explanation:
Given a circle centred at the point P(-4,-6) and passing through the point
R(2,2).
To find its equation, we follow these steps.
Step 1: Determine its radius, r using the distance formula
For point P(-4,-6) and R(2,2)
Step 2: Determine the equation
The general form of the equation of a circle passing through point (h,k) with a radius of r is given as:
Centre,(h,k)=P(-4,-6)
r=10
Therefore, the equation of the circle is:
