Which is an example of a quadratic function whose graph opens downward and has its ventes at (0, 1)?

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.