Jamal uses the line of best fit y-900x+39,750 to predict his annual salary, y, after x years. Use this information to answer each question below. What is the y-intercept of the line of best fit and what is the meaning of the y-intercept?​

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.