Understand the definition of undefined slope and zero slope. Learn how to identify if a slope is undefined, and explore how the graphs for zero...
determine whether the slope of each line is positive,negative,zero,or undefined.1.the line passes through the points (a,d) and (a,c)2.the line passes through the points (x,y) and (x+a,y+a)3.the line passes through points (-x,y) and (x,-y)应该是1.the line passes through th...
1determine whether the slope of each line is positive,negative,zero,or undefined.1.the line passes through the points (a,d) and (a,c)2.the line passes through the points (x,y) and (x+a,y+a)3.the line passes through points (-x,y) and (x,-y)第一题我打错了 应该是1.the lin...