Find the -intercept of the tangent line to at .
Answer and explanation
Correct answer: C.
- Step 1: , so the slope at is ; the point is .
- Step 2: The tangent is ; at , .
Answer
.
Why not the others: : that is , not the intercept of the tangent. : the sign is reversed. : that is the slope.
Practise more Differentiation.
Free questions with an explanation for every one, and full timed EJU Japan mock tests.