(0,1)(1,3)(2,9)(3,27)(4,81) what rule represents this function?

What statement is true? 2x^2-9x+2=-1

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Which of the following parabolas opens down?