求解一道英语的数学题,题目如下:a relation is given by [(-3,4),(-2,-1),(-1,3),(-3,-2)]. state the domain and range, Is the relation a function?

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求解一道英语的数学题,题目如下:a relation is given by [(-3,4),(-2,-1),(-1,3),(-3,-2)]. state the domain and range, Is the relation a function?
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求解一道英语的数学题,题目如下:a relation is given by [(-3,4),(-2,-1),(-1,3),(-3,-2)]. state the domain and range, Is the relation a function?
求解一道英语的数学题,题目如下:
a relation is given by [(-3,4),(-2,-1),(-1,3),(-3,-2)]. state the domain and range, Is the relation a function?

求解一道英语的数学题,题目如下:a relation is given by [(-3,4),(-2,-1),(-1,3),(-3,-2)]. state the domain and range, Is the relation a function?
这道题的意思是说一个函数关系式经过(-3,4),(-2,-1),(-1,3),(-3,-2)四点,求关系式
设关系式为y=ax^2+bx+c
后面就靠带入计算了,并不难
纯手打,