[Video] Q7: F(x) = -0.001160(x-251.5)^2 + 73.37the vertical height, in meters, of the upper arch of the harbor bridge in sydney, australia, above the roadway of the bridge can be modeled by the function above, where x is the horizontal distance along the roadway, in meters, from the entry to the bridge. the graph of y=f(x) is shown in the xy-plane below. in the graph, the point (0, 0) represents the entry to the bridge. which of the following points represents the exit from the bridge on the opposite end?

Explanation for Question 7 From the Math (Calc) Section on the 2019 March Sat

Question seven says the vertical height in meters of the upper arch 2 of the Harbor bridge in Sydney, Australia above the roadway of the bridge can 3 be modeled by the function above where X is the horizontal distance along the 4 roadway in meters, from the entry to the bridge, 5 the graph of Y equals F of X is shown in the X, 6 Y plane below in the graph. 7 The 0.00 represents the entry to the bridge, 8 which of the following points represents the exit from the bridge on the opposite. 9 Add, since this is the entry to the bridge right here at 10 zero zero, that means that this right here is the exit to the bridge 11 where the bridge ends. So all we have to do here is find the 12 coordinates of this point. So if you look at the Y coordinate, 13 that's going to be at zero and the X coordinate is around 500. 14 So that means that our coordinates should be something like 500 zero. 15 And so from that, we know that the only possible answer is D 503.