Traditional Culture Encyclopedia - Tourist attractions - In order to facilitate the masses, promote local economic development and promote a virtuous circle of tourism resources around Yichang, the Yichang Municipal Government has specially pushed the popul

In order to facilitate the masses, promote local economic development and promote a virtuous circle of tourism resources around Yichang, the Yichang Municipal Government has specially pushed the popul

In order to facilitate the masses, promote local economic development and promote a virtuous circle of tourism resources around Yichang, the Yichang Municipal Government has specially pushed the population of Yichang to 6,543.8+0.37 million. (1) Let the analytical formula of a straight line be y=kx+b,

20k+b=240k+b=4,

The solution is k=0. 1, b=0,

y=0. 1x。

(2) When x=80, y = 80,000.

Therefore, it is predicted that the total number of cardholders on the 80th day will be 80,000.