What is the function?
1) At what value(s) of x, if any, would the value of the derivative be equal to zero?
A) When x=c and x=e only.
B) When x=b only.
C) When x=a, x=b, x=c, and x=d.
D) When x=a, x=b, and x=d.
Here, I put C.
2) At what value(s) of x would the derivative not exist?
A) When x=c and x=e only.
B) When x=c only.
C) When x=a, x=b, x=d, and x=e only.
D) When x=a, x=b, and x=d only.
Here, I put A.
Am I right on these?
Hello, salma!
1) At what value(s) of , if any, would the value of the derivative be equal to zero?
A) When and only.
B) When only.
C) When
D) When
. . Here, I put C. . . . . no
There is a vertical tangent at C.
The derivative is DNE (does not exist).
2) At what value(s) of would the derivative not exist?
A) When and only.
B) When only.
C) When only.
D) When only.
. . Here, I put A. . . . . no
You are half-right.
The derivative is DNE at
But the derivative does exist at
The point itself does not exist.
But you can sketch the tangent line there, can't you?