Y is directly proportional to
y=1
when r=8
Find the value of y when x=64

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

Find the cosine function that is represented in the graph.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).