Compute the Average of the RRAM and LRAM Approximations to Estimate

Multiple Choice

Compute the average of the RRAM and LRAM approximations to estimate the area between the graph of the function
and the x-axis over the given interval using the indicated number of subintervals. (The function is non-negative on the
given interval) .
- $f ( x ) = 3 x + 3 ; [ 0,5 ] ; 5$ subintervals

A) $\frac { 123 } { 2 }$
B) $\frac { 105 } { 2 }$
C) $\frac { 87 } { 2 }$
D) 105