def isInside(point_x, point_y, area_left, area_top, area_width, area_height):
    """
    Returns `True` if the point of `point_x`, `point_y` is inside the area
    described, inclusive of `area_left` and `area_top`.

    >>> isInside(0, 0, 0, 0, 10, 10)
    True
    >>> isInside(10, 0, 0, 0, 10, 10)
    False
    """
    return (area_left <= point_x < area_left + area_width) and (area_top <= point_y < area_top + area_height)