Existing-home sales rose again in April with buyers motivated by the tax credit, improving consumer confidence and favorable affordability conditions, according to the latest survey. Existing-home sales increased 7.6 percent to a seasonally adjusted annual rate of 5.77 million units in April from an upwardly revised 5.36 million in March, and are 22.8 percent higher than the 4.70 million-unit pace in April 2009. Monthly sales rose 7.0 percent in March. Lawrence Yun, NAR chief economist, said the gain was widely anticipated. “The upswing in April existing-home sales was expected because of the tax credit inducement, and no doubt there will be some temporary fallback in the months immediately after it expires, but other factors also are supporting the market,” he said. “For people who were on the sidelines, there’s been a return of buyer confidence with stabilizing home prices, an improving economy and mortgage interest rates that remain historically low.”