Question

Determine a vector equation for the line through the points (-1, 4) and (2, -1).

I said: r= (-1,4) + (4,-5), tER, is that correct?

Answer 1

I think I found my mistake, I added wrong lol!

Answer 2

Yup, I got it, it should be r= (-1,4) + (3,-5), tER..yay for me! lol

Answer 3

what does tER mean, anyway?