V=square root (3/2)/2
Or V=-square root (3/2)/2
4200ft divided by 20 ft per second divided by 60 seconds is 1400 minutes
We are asked to determine the value of a such that the function f(x) = ax^2 + 5 is fit for the point given (-1,2). In this case, we substitute 2 to y and -1 to x. The result is then 2 = a*(-1)^2 + 5 ; 2 = a + 5; a is then equal to -3