Find the vertical shift, amplitude, ect with the given data? I'm not quite sure how to do it.

Find the roots of the equation below. x^2 - 6 + 9 = 0

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year