How many critical points does have?

Suppose two trains leave the same station at the same time. One is traveling north at 60 miles per hour, the other is traveling east at 80 miles per hour. After two hours, what is the rate of change of the distance between the two trains in miles per hour? (enter a positive whole number as your answer)

Suppose two trains leave the same station at the same time. One is traveling north at 60 miles per hour, the other is traveling east at 80 miles per hour. After two hours, what is the rate of change of the distance between the two trains in miles per hour? (enter a positive whole number as your answer)

Find the smallest sum of two positive numbers whose product is 100. 

Find the smallest sum of two positive numbers whose product is 100. 

Find the smallest sum of two positive numbers whose product is 100. 

Use the linearization of

How many critical points does have?

Suppose two trains leave the same station at the same time. One is traveling north at 60 miles per hour, the other is traveling east at 80 miles per hour. After two hours, what is the rate of change of the distance between the two trains in miles per hour? (enter a positive whole number as your answer)

Use the linearization of