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一道SAT的数学题Findanequationforthefamilyoflinearfunctionswithslope2andsketchseveralmembersofthefamily

题目详情
一道SAT的数学题
Find an equation for the family of linear functions with slope 2 and sketch several members of the family
▼优质解答
答案和解析
y=2x+b
斜率为2
然后你就画个y=2x
然后平行的画几条就行了