1. Expand and simplify second-degree polynomial expressions.
扩展和简化二度多项式表达
2.Factor polynomial expressions involving common factors, trinomials and different of squares.
涉及公因子、三项式及平方差的多项式因子的表达。
3.Solve quadratic equations that have real roots.
求解含有实根的二次方程。
4.Solve systerms of two linear equations involving two variables by graphing. Solve systerms of two linear equations involving two variables by using the algebraic method of substitution or elimination.
通过用绘图求解涉及二维变量的两个线性方程系统。
通过用取代或排除式的代数方法求解涉及二维变量的两个线性方程系统。
5.Solve problems involving the slope length and midpoint of a line segment.
求解有关直线段的坡长和中点值的难题。
6.Determine the radius of a circle with center(0.0)given its equation.
以圆圈的中心（0.0）所给出的公式来测定其半径。
8.Understand the roles of a,h,and k in y=a(x-h)2 to identify the transformations.
通过了解y=a(x-h)2中的a、h和k的作用来鉴定它的换算。（k是否是x的笔误？）
9.Sketch by hand, graphs by applying transformations.
通过应用换算，以手绘出图形。
linear relations 线性关系
linear equation 线性方程
a "balance" model 平衡模型。
【英语牛人团】
