Answer:
The coordinates for the reflection of quadrilateral ABCD is..
A'(-7,2) ----> A'(-7,-2)
B'(-7,4) ----> B'(-7,-4)
C'(-4,6) ----> C'(-4,-6)
D'(-1,6) ----> D'(-1,-6)
Step-by-step explanation:
Since it's being reflected over the x-axis, the x remains the same and the y becomes a negative.
1: establish the angles, basically label one x (the small one) and the other y (the bigger one)
2. supplementary angles add up to 180, so therefore you have the equation x + y = 180.
3. so y (the bigger one) is 8 less than 3 times the smaller one (x) therefore you come up with the equation y = 3x - 8
4. plug in the equation of the bigger one into the other equation
x + 3x - 8 = 180
(combine like terms)
4x - 8 = 180
5. solve the equation by adding 8 to 180, then by dividing by 4.
x should equal 47
6. plug in 47 into the x + y = 180 equation, subtract 47 from 180 and you end up with 133
i hope i explained it alright
Answer:
Step-by-step explanation:
