The cost, in dollars, to produce 1 watt of solar energy is a function of the number of years since 1977, `t`. From 1977 to 1987, the cost could be modeled by an exponential function `f`. Here is the graph of the function. 1. What is the statement `f\left(9\right)\approx6`saying about this situation?

HINT: f(x) = y. x is the input. y is the output. So 9 is what and 6 is what?

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?