1. Given that the function y = - 6 / X passes through the point (- 2, K), try to find the area s of the triangle formed by the image of the function y = kx-1 and the coordinate axis 2. The annual electricity price of a certain place is 0.8/kwh, and the annual electricity consumption is between 100 million kwh. According to calculation, if the electricity price is adjusted to X Yuan / kWh, the new electricity consumption y (100 million kwh) is inversely proportional to (x-0.4) (yuan / kWh), and when x = 0.65, y = 80 million kwh, How much yuan / kWh will the electricity price be adjusted, and the revenue of the power sector in that year will increase by 20% compared with the previous year

1. Given that the function y = - 6 / X passes through the point (- 2, K), try to find the area s of the triangle formed by the image of the function y = kx-1 and the coordinate axis 2. The annual electricity price of a certain place is 0.8/kwh, and the annual electricity consumption is between 100 million kwh. According to calculation, if the electricity price is adjusted to X Yuan / kWh, the new electricity consumption y (100 million kwh) is inversely proportional to (x-0.4) (yuan / kWh), and when x = 0.65, y = 80 million kwh, How much yuan / kWh will the electricity price be adjusted, and the revenue of the power sector in that year will increase by 20% compared with the previous year

Solution 1. Substituting (- 2, K) into y = - 6 / x, k = 3. Y = 3x-1 intersects the coordinate axis at (0, - 1) and (1 / 3,0), then s = # - 189; × 1 × 1 / 3 = 1 / 6