Calculus final

• Even

• Odd

• Neither

• Both

• x=0, no y intercepts

• x=0, y=0

• y=0, no x intercepts

• No x or y intercepts

• None

• 0

• 1

• 1 and -1

• x=1

  x=-1

• x=0

• 
• 
• 
• 

Two airplanes moving towards the point (0,0) as they fly at right angles to each other (see figure). One airplane is 225 km from the point, moving at 450 km/h. The other airplane is 300 km from the point, moving at 600 km/h.

What is the distance between the two airplanes?

• 285km

• 300km

• 311km

• 375km

Two airplanes moving towards the point (0,0) as they fly at right angles to each other (see figure). One airplane is 225 km from the point, moving at 450 km/h. The other airplane is 300 km from the point, moving at 600 km/h.

What are dx/dt and dy/dt?

• dx/dt = 450km/h, dy/dt = 600km/h

• dx/dt = 600km/h, dy/dt = 450km/h

• dx/dt = -450km/h, dy/dt = -600km/h

• dx/dt = -450km/h, dy/dt = 600km/h