Contact us
Choose a category below so we can get back to you as quickly as possible.
二次函數影像:對稱軸x= ;-b/2a當A,C固定時,對稱軸會向左移或向右移x1+x2= ;-b/a ; ; ;x1*x2= ;c/a
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.