12. Which of the following equations describes the graph?
A. y= 1/2x^2 - 2x - 1
B. y= 2x^2 + 2x - 1
C. y= 2x^2 - 2x - 1
D. y= 1/2x2 - 2x + 1

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

The ratio of wooden bats to metal bats in the baseball coach’s bag is 2 to 1. if there are 20 wooden bats, how many metal bats are in the bag?

Can someone tell me if this is perpendicular? !