Question

the value of shares in a company is modelled by the equation v=-5t^2+30t+40 where v is the value in pence of one share and t is the time in years after the shares were first traded.

find v when t=0

Answer 1

$$\text{v}(0)=-5(0)^2+30(0)+40=40$$

v=40 pence when t=0