Parallelogram CDEF with vertices C(2, -1), D(7,1), E(6,-2), and F(1,-4) a) reflection in the line y = x
b) translated along the rule (x, y) - (x - 3, y-7)

C-
D-
E-
F-

∠cbe and ∠deb are same-side interior angles.

i took the test

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west