Are There Other Equations for Lines Besides <x0+at,y0+by,z0+tz>?

[nameVoid]

I have a question about the equation of a line

Are the forms <x0+at,y0+by,z0+tz>
And t=(x-x0)/a=(y-y0)/b=(z-z0)/c only for straight lines?

 

[tiny-tim]

hi nameVoid!

(i think you mean <x0+at,y0+bt,z0+ct>)

I have a question about the equation of a line

Are the forms <x0+at,y0+by,z0+tz>
And t=(x-x0)/a=(y-y0)/b=(z-z0)/c only for straight lines?

yes …

now show us how you'd prove that ​