题目信息
In the xy-coordinate system, line k has y-intercept 12 and an x-intercept greater than zero. If the area of the triangular region enclosed by line k and the two axes is 30, what is the slope of line k?
A:$$-\frac{12}{5}$$
B:$$-\frac{6}{5}$$
C:$$\frac{6}{5}$$
D:$$\frac{3}{2}$$
E:$$\frac{12}{5}$$
参考答案及共享解析

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已选答案:
正确答案:
A:$$-\frac{12}{5}$$
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题目来源
Magoosh