Ireally need ! the table below represents the velocity of a car as a function of time. table: time velocity (hour) (miles/hour) x y 0 50 1 52 2 54 3 56 part 1: what is the y-intercept of the function, and what does this tell you about the car? part 2: calculate the average rate of change of the functino represented by the table between x=1 to x=3 hours, and what does the average rate represent? part 3: 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? 1

Part 1

The y-intercept is found in the table by looking for the entry where x=0. That is y=50.

Part 2

The average rate of change is the amount of change divided by the width of the interval. From x=1 to 3, that is

... average rate of change = (56 mph - 52 mph)/(3 h - 1 h) = 4/2 mph/h = 2 mph/h

The rate of change in velocity is acceleration. This represents the average acceleration of the car.

Part 3

From the last table entry to 60 mph, the car must increase in speed by 4 mph. We know from part 2 that this change takes 2 hours to accomplish. Adding 2 hours to the last entry in the table brings the x-value to 5. The domain of the function would need to be increased to cover the interval [0, 5] hours.

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

i dont get the question

step-by-step explanation: