Path Animation
Any object including lights deformers and cameras may be animated along a path.

Set up your options for animation:
File -> New Scene->boxicon.gif
Select Time: NTSC (30 fps)  (We record to video, 30 frames per second is the frame rate.)
Set the Playback Start/End between 1 and 300.
Set the Animation Start/End between 1 and 300.
Hit Apply

Use Windows->Settings/Preferences->Preferences
     Choose the Settings section.
     Make sure Time: NTSC (30 fps)

Choose the Time Slider section.
     Make sure Playback Start/End between 1 and 300.
     Make sure Animation Start/End between 1 and 300.
     Select Playback Speed Play Every Frame, this will allow the simulation to process every frame.
     Your playback speed will not be accurate
     Set Max Playback Speed to Free
     Click Save

Draw the Path
Draw a curve in any view. Create->Curve Tools->CV Curve Tool

Create an object such as a sphere to animate along the path. The object moves along the path from the pivot center.

Set the maximum playback on the time slider to 300, over to the right on the time slider.

Select the sphere and then select the path.

Switch the Menu Set to Animation in the top left corner of the Maya window
Choose Constrain->Motion Paths->Attach to Motion Path

Change the timing in the Graph Editor
Select the sphere

Open Windows->Animation Editors->Graph Editor
     Select View->Frame All
      Select the last key frame and input a new time in the first box of Stats

Preview the animation:
Hit the play arrow on the time slider. timesliderplay.jpg

Bake the Animation for Unity etc
Select the object with animation.
Choose Key->Bake Animation
The default settings will create keys for rotation, translation and scaling for every frame, using the time slider.
Also Select Edit->Delete by Type->Static Channels to clean up extra unused channels
Save your model, use the unity tutorial to connect the animation.

Setup Animation to a TIFF Sequence
Select File > Set Project to set the location to which your want to save your rendered images

Choose Windows->Rendering Editors->Render Settings... 
or press this icon upper right srender_settings

Under the Common tab:
Under the Image File Output
               Choose Image format: Tiff
               Uncheck Dither

               Choose Frame/Animation Ext:   Name.#.ext
               Input Frame Padding 4 (This keeps the files listed in order alphabetically.)
               Input a start and end frame value
               Make sure to choose the right camera, especially if you added a new camera.
               Uncheck Alpha channel (mask)   (Unless transparency layer needed.)

          Under the Image Size arrow:
               Choose Width 960 and Height 540  (1920 x 1080 hidef or what you need)
               Click Close

Render to File(s)
Change to the Rendering Module

Select Render->Render Sequence from the top menu bar.

You can always hit the Esc button to stop the render.

Where are the files?
The image is stored locally in the images folder on your computer. You can change the location.

PC: C:\Users\%USERNAME%\Documents\maya\projects\default\images

Mac: /users/$user/Documents/maya/projects/default/images

View the Animation with fcheck
PC: Use C:\Program Files\Autodesk\Maya2018\bin\fcheck.exe
Mac: Use Applications\Autodesmaya2018\Fcheck
Select File->Open Animation  Select the first frame.