SOLUTION: Use parametric differentiation to find dy/dx in terms of t, then evaluate dy/dx
when t = −1:
x = at + b
y = bt + a
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when t = −1:
x = at + b
y = bt + a
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Question 1180105: Use parametric differentiation to find dy/dx in terms of t, then evaluate dy/dx
when t = −1:
x = at + b
y = bt + a Answer by ikleyn(52779) (Show Source):
= a.
= b.
THEREFORE
= = . ANSWER
Notice that the answer does not depend on the value of "t".
It is the same for any value of "t"; in particular, for t = -1.
