3. A rocket is fired with an initial vertical velocity of 40 m/s from a launch pad 45 m high. Its height is given by the formula −5+²+40t+45, where his in metersand t is in seconds. How high does the rocket go? How much time is the rocket in flight? 4. You are in business and have a product that sells for $10 that 1,000 people buy each month. You want to make a profit and wonder whether you should raisethe price in increments of a dollar. For each dollar you raise the price, you lose 100 customers. How many dollars can you increase in price to maximize yourprofit, or should you increase in price at all?