若正比例函数的图象经过点（－1，2），则这个图像必经过点（   ）

选出下面词语书写全部正确的一项(       )。

    I'm Jim. Today is my birthday. I want to thank my family for their love. So I cook dinner for them. I know my mother likes hamburgers and salad. But my father likes chicken and tomato soup(汤). I have a brother. He likes hamburgers, too. But he doesn't like salad. He likes carrots. I have a sister, too. She likes fish(鱼肉) and bread. I like chicken and strawberries. I will buy these things for the birthday party.

已知定义在R上的偶函数f（x）满足f（x）=﹣f（x+2），且当x∈（2，3）时，f（x）=3﹣x，则f（7.5）=____ 

下列方程中，有实数根的方程是（      ）