On the positive proportion function of grade two As shown in the figure, the line L is parallel to the Y axis and intersects with the image of the function y = x.x axis and the function y = KX at points a, B and C respectively. If the triangle BOC = 2 and the triangle AOB, then the value of K is?
You can draw a sketch by yourself. The slope of y = KX is larger than that of y = X
From Δ BOC = 2 Δ AOB
1/2·OB·BC=2·1/2·OB·AB
BC=2AB
And AB / ob = 1
k=BC/OB=2AB/OB=2
k=2
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