Question

数学中vertical stretch什么意思，最好加上例子，O(∩_∩)O谢谢啊~~

Answer 1

The graph of y=Af(x) can be obtained from the graph of y=f(x) by multiplying eachordinate value of the latter by A.

If A>1, the result is a vertical stretch of the graph of y=f(x) 垂直拉伸

If 0<A<1, the result is a vertical shrink of the graph of y=f(x) 垂直收缩

If A= -1, the result is a reflection in the x axis of the graph of y=f(x)

If A, isa negative number other than -1, the result is a combination of a reflection in the x axisand either a vertical stretch or a vertical shrink.

如果看不懂英语我可以继续翻译给你，望采纳

Answer 2

垂直拉伸的意思