指数函数图像和性质_课件VIP专享VIP免费

指数函数定义：函数)10(aaayx且叫做指数函数，其中x是自变量函数定义域是Rxy44xyxy414xy下列函数中，哪些是指数函数

xy4xy23x-3-2-101231248842113927931在同一坐标系下作出指数函数的图象解：列出函数数据表,作出图像x21x3x227127127191213131914141218181x31011xyxy2xy21xy3xy31011xyxy21xy31xy2xy3011xyxy01xay)10(a01xay)1(axy011xyxy2xy21xy3xy31y=1xy01xay)10(a01xay)1(axy654321-1-4-224601654321-1-4-224601a>101x>0时，0