Question

Let the function $f(x)$ be continuous in the interval $[a, b]$ and differentiable in $(a, b)$ . Then there is at least one point $c$ in $(a, b)$ at which the tangent to the curve $y = f (x)$ is parallel to

• A. $x$ - axis
• B. $y$ - axis
• C. the straight line
• D. the chord joining the points $(a, f (a))$ and $(b, f (b))$

Answer 1

Answer: (D)

the chord joining the points $(a, f (a))$ and $(b, f (b))$

Answer 2

Answer (d) the chord joining the points $(a, f (a))$ and $(b, f (b))$