Answer:
Step-by-step explanation:
We are given the equation:
And we want to determine the value of <em>k</em> such that the graph passes through the point (-2, 1).
Hence, when <em>x</em> = -2, <em>y</em> = 1. Substitute:
Simplify:
Hence:
Answer:
Step-by-step explanation:
The answer is A because if you look at the choices the height of the the ship is not even
Answer: D. 2x² + 3/2.x - 5
Step-by-step explanation:
Answer:
See the table attached for a list of the dilated coordinates.
Step-by-step explanation:
Each image point will be the midpoint* of the segment joining the center of dilation with the pre-image point. Since there are so many, it is convenient to use a spreadsheet to calculate them.
- A'(-1.5, 5)
- B'(1.5, 1.5)
- C'(-1.5, 4.5)
- D'(1.5, 6)
- E'(-1.5, 2.5)
- F'(2.5, 5)
_____
* The points are the midpoint because the scale factor is 1/2. That is, the distance from the center of dilation (COD) in the image is 1/2 the distance from the COD to a point in the pre-image. Any midpoint is the average of the two endpoints.
Here, that means the image point is half the sum of the coordinates of the pre-image point and (-4, 2). That is what the spreadsheet calculates.