The survey sample includes residents of the neighboring city whose phone number is listed.
Answer:
The speed of the plane is 
Step-by-step explanation:
The vector (5,6) represents a point in the coordinate system time-position.
So, we have that at t = 5 s the position is x = 6.
Let's recall that the slope of this vector is the speed, then using the tangent definition:


I hope it helps you!
Many fractions including 1/5, 2/10, 3/15, 4/20 and up.