Answer
The number of rides decreases by about 3070.
Work Step by Step
Since we used it for part (a),
continue using the online calculator (desmos.com) to calculate
$q(3)=27.7694846673$
$\mathrm{q}(3.5)=24.6995056016$
Changing the cost p results in
$q(3.5)-q(3) =-3.06997906568$ (thousand rides)
The number of rides decreases by about 3070.
