Is it inevitable that the monopoly price is higher than the competitive price demonstrate graphycally?

Yes, it is generally inevitable that the monopoly price is higher than the competitive price. In a competitive market, many firms offer similar products, driving prices down to the marginal cost of production. In contrast, a monopolist, being the sole producer, can set prices above marginal cost by restricting output to maximize profit. Graphically, this is illustrated by a downward-sloping demand curve for the monopolist, which shows that as the monopolist raises the price, the quantity demanded decreases, leading to higher prices compared to the horizontal demand curve in perfect competition.