Jasten
23.07.2021 •
Mathematics
The coordinates of the image of P(3,-4) under a reflection in the x-axis are:
A. (3,4)
B. (4, -3)
C. (-4, 3)
D. (-3,-4)
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Ответ:
D. (-3,-4)
Step-by-step explanation:
PLACE YOUR GRAPH TOWARDS A MIRROR
Ответ:
DG+GE = DE
9x-7+6x-2 = 21
15x-9 = 21
15x = 30
x = 2
Length of DG:
9x-7 = 9(2)-7
= 19-7
= 12 meters