Find the equation of the circle: y-intercepts 4 and –8, contain (–12, –8)

The center-radius form of the circle equation is given by:

Here we know that the y-intercepts are:

So:

So we have the following system of equations:

From (I):

Finding the radius:

Finally, the equation of the circle is:

addition

step-by-step explanation:

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.