Given:
The point is B(2,5) and its image is B'(1,2.5).
To find:
The scale factor.
Solution:
If a figure is dilated by the scale factor k and (0,0) is the center of then the scale factor is defined as
x-coordinate of point B' is 1 and the x-coordinate of point B is 2. So, the scale factor is
Therefore, the scale factor is 
and the correct option is D.
According to the table, when x = 2, y = 12, and when x = 6, y = 4. We fit them into the slope formula like so:
.
The slope of the line between the two points is -2.
Methods of describing a set involve using a roster or set-builder notation to outline it.
<h3>What are the methods of describing a set</h3>
The two methods of describing a set are:
- roster method
- set- builder notation method
Roster method describes a set by listing all its elements, separated them by commas and enclosed within brackets.
Set- builder notation method describes a set by describing its elements using mathematical statements
Therefore, methods of describing a set involve using a roster or set-builder notation to outline it.
Learn more about sets here:
brainly.com/question/2166579
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58 because is 8 so 9 x8 is 9907 I’m math so answer :5
Answer:
4x +6
Step-by-step explanation:
No explanation
Straight answer
