The number of x-intercepts of the graph of y=ax2+bx+c, where a, b, and c are non-zero integers can be:
A) 0
B) 1
C) 2
D) any of the above
E) none of the above
The number of x-intercepts of the graph of y=ax2+bx+c, where a, b, and c are non-zero integers can be:
A) 0
B) 1
C) 2
D) any of the above
E) none of the above
此题的意思是: y=ax2+bx+c的图像与x轴交点个数可能是(a,b,c为非零整数)。选项D的意思是上述的任何一个。E的意思上述都不对。答案应当为D