Describe the effect of the transformation.
(x,y)--->(x,-7y)
A. Vertical translation of -7 units.
B. Vertical stretch without reflection
C. Horizontal translation of -7 units
D. Vertical stretch without reflection
Is the answer A
D.Vertical stretch with reflection
It was supposed to say this
y---->7y would "stretch" it by a factor of 7
y ---- -7y would not only stretch it but also reflect it in the x-axis.
so it looks like D after your correction of the wording
(x,y) --> (x-1,y+4)
No, the correct answer is not A. The given transformation (x,y) ---> (x,-7y) does not involve a vertical translation of -7 units.
To determine the effect of the transformation, we need to analyze each component of the transformation separately:
1. The x-coordinate remains unchanged, so there is no horizontal translation.
2. The y-coordinate is multiplied by -7, which means that the points are vertically stretched by a factor of 7 without any reflection.
Therefore, the correct answer is option D: Vertical stretch without reflection.