Describe and correct the error a student made in finding the average rate of change for f(x)equals0.5xsquared over the interval minus4less than or equalsxless than or equalsminus2.
Describe the student's error. Select the correct choice below and fill in the answer box to complete your choice.
A.
The points were correct and the student correctly simplified the numerator and denominator, but they did not simplify the fraction correctly. The correctly simplified fraction is
nothing.
(Type an integer or a simplified fraction.)
B.
The points were correct, but the student made an error in calculating the denominator. The correct slope is
nothing.
(Type an integer or a simplified fraction.)
C.
The points were correct, but the student made an error in calculating the numerator. The correct slope is
nothing.
(Type an integer or a simplified fraction.)
D.
The points used to find the slope were incorrect. The correct points are