What is the area of this triangle with coordinates (-2,-1), (0,-5), (4,-5)

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12

step-by-step explanation:

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.