The surface of a pedestrian bridge forms a parabola. Let the surface at one side of the bridge be represented by (6,0) and the surface at the other side of the bridge be represented by (14,0). The center of the bridge is 2 feet higher than each side and can be represented by a vertex of (10,2). Write a function in vertex form that models the surface of the bridge.

The actual length of side t is 0.045 cm. use the scale drawing to find the actual side length of w. a) 0.06 cm b) 0.075 cm c) 0.45 cm d) 0.75 cm

On a piece of paper graph f(x)=5•(0.4)^x

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)