In the rectangular coordinate system, line k passes through the points (0, 0) and (4,8); line m passes through the points (0,1)

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问题 In the rectangular coordinate system, line k passes through the points (0, 0) and (4,8); line m passes through the points (0,1) and (4,9).

Column A                       Column B
The slope of line k            The slope of line m

选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given

答案C

解析 在一个平面直角坐标系中,直线忌通过(0,0)和(4,8)两点,直线m通过(0,1)和(4,9)两点。
解:本题的正确答案为(C)。Slope=(y1-y2)/(x1-x2), so, Slope(k)=(8-0)/(4-0)=2; Slope(m)=(9-1)/(4-0)=2
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