Question

what should you do to maintain a constant speed while driving up a steep incline? increase pressure on the accelerator pedal decrease pressure on the accelerator pedal maintain a firm hold on the steering wheel gently apply the brake

Explanation:

When driving up a steep incline, gravity acts against the motion of the vehicle. To counter - act this and maintain a constant speed, more power is needed, which is achieved by increasing pressure on the accelerator pedal. Maintaining a firm hold on the steering wheel is for control but not for maintaining speed. Decreasing accelerator pressure or applying the brake will slow the vehicle down.

Answer:

increase pressure on the accelerator pedal