Sketch the following curves. (a) r = (1 − t)(i + j) + t(i − j); 0 ≤ t ≤ 1
(b) r(t) = ⟨t^4 + 1, t⟩.

Can anyone please help me sketch this graph?

With finding limits of multi variable !

Ms. ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms. ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?