Practice problem
We have two lines that are parallel: y1=ax1+by_1 = ax_1+by1=ax1+b y2=cx2+dy_2 = cx_2+dy2=cx2+d
What can we conclude about a,b,c,da,b,c,da,b,c,d?
a=ca=ca=c
b=db=db=d
a≠ca\neq ca=c
a=−ca = -ca=−c
Type a concept, like “slope” or “photosynthesis”.
