The answer is yes.
A line and a point outside the line define a unique plane. In other words, there is a single plane that contains a line and a point outside the line. If you are given line XY and point C outside the line, there is a single plane containing both line XY and point C. Therefore, line XY and point C must lie in the same plane.
Answer:
x = 2
Step-by-step explanation:
AB/BC = AD/DE
= 
cross-multiply:
2+x = 4
x = 2
Answer: 1
Step-by-step explanation:
8/-4 ÷ -3/9
8/-4 × 9/ -3 = 6
Answer:

Step-by-step explanation:
Set up an equation and solve for r using the formula for slope:
