The table below represents the velocity of a car as a function of time: time (hour) x velocity (miles/hours) y 0 50 1 52 2 54 3 56 part a: what is the y-intercept of the function, and what does this tell you about the car? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the velocity of the car was measured until it reached 60 miles/hour and the car does not change motion?
Part A. y-intercept tells about how much velocity does car reaches in a certain time. Part B. the average rate of change is = x+1,y+2 Part C. Car reaches 60 miles per hour of velocity in 5 hours.
For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary