Based on the family the graph below belongs to, which equation could represent the graph? y=2x+3
y=log(2x)+3
y=2x2+2
y/ 1/2x+2

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. how many hours after the truck's departure will the two meet?

Which best explains why this triangle is or is not a right triangle ?

Anyone know these questions? i need ,.