已知y1=2x+8 y2=6-2x 当x取何值时,y1=y2 当x取何值时,y2-y1=5
1.已知y1=-x+2,y2=3x+4,当x分别取何值时,y1=y2,y1<y2,y1>y2?
一次函数y1=2x+1,y2=5x+16,当x分别取何值时,y1=y2,y1>y2,y1
已知y1=2x+8,y2=6-2x (1)当x取何值时,y1=y2? (2)当x取何值时,y1比y2小10
已知y1=2x²+7x-1,y2=x²+6x+2当x取何值时,y1=y2
已知y1=17/5x+8,y2=7/2-2x(1)当x取何值时,y1=y2?(2)当x取何值时,y1比2呀大5?
已知y1=2x²+7x-1,y2=6x+2,当x取何值时y1=y2
1.已知y1=2x²+7x-1,y2=6x+2,当x取何值时y1=y2?
已知Y1=3x+2,y2=4-x.(1)当x取何值时,y1=y2?(2) 当x取何值时,y1比y2大四?
已知y1等于二分之一x+1,y2等于-x+3.(1)当x取何值时,y1=y2?(2)当x取何值时,y1与y2的和为0?
已知y1=3(5/3x-1/2),y2=4(1/2-x当想取何值时,y1=y2
已知y1=二分之+4,y2=3x-5,当x取何值时,y1比y2的2倍大3?
已知y1=3x+2,y2=4-x.当X取何值时,y1比y2大4?