NEW
Font size
WorksheetsQuadratic inequalities 二次不等式2
Total questions: 25
Worksheet time: 14mins
開口方向?
direction of opening?
開口向上 open upwards
開口向下 open downwards
開口方向?
direction of opening?
開口向上 open upwards
開口向下 open downwards
開口方向?
direction of opening?
開口向上 open upwards
開口向下 open downwards
開口方向?
direction of opening?
開口向上 open upwards
開口向下 open downwards
二次函數 Quadratic function : y=x2 -5x+6
求開口方向。
Find the direction of opening.
開口向上 open upwards
開口向下 open downwards
二次函數 Quadratic function : y=-2x2 -5x+6
求開口方向。
Find the direction of opening.
開口向上 open upwards
開口向下 open downwards
圖中有多少個實根?
In the figure, how many real roots are there?
0
1
2
圖中有多少個實根?
In the figure, how many real roots are there?
0
1
2
圖中有多少個實根?
In the figure, how many real roots are there?
0
1
2
圖中有多少個實根?
In the figure, how many real roots are there?
0
1
2
x2+5x+4=0 有多少個實根?
How many real roots for x2+5x+4=0?
0
1
2
2x2+5x+4=0 有多少個實根?
How many real roots for x2+5x+4=0?
0
1
2
x2+12x+36=0 有多少個實根?
How many real roots for x2+12x+36=0 ?
0
1
2
解 x2-7x+10 < 0
Solve x2-7x+10 < 0
2<x<5
x<2 or x<5
x>5 or x>2
x<2 or x>5
解 x2-6x+8 > 0
Solve x2-6x+8 > 0
2<x<4
x>4 or x<2
x>4 or x>2
解 x2+3x-4<0
Solve x2+3x-4<0
x<-4 or x<1
x<1
-4<x<1
x<-4 or x>1
解 x2+3x−4≤0
Solve x2+3x−4≤0
x≤−4 or x≤1
x≤−4 or x ≥1
x≤−4
−4≤x≤1
解 2x2−6x≥0
Solve 2x2−6x≥0
x≥0 or x≥3
x≤0 or x ≥3
x≥0
0≤x≤3
解 2x2−x+2≥0
Solve 2x2−x+2≥0
沒有解
no solution
所有實數x
all real values of x
解 2x2−x+2<0
Solve 2x2−x+2<0
沒有解
no solution
所有實數x
all real values of x
解 x2+10x+25>0
Solve x2+10x+25>0
沒有解
no solution
除 -5以外的所有實數x
all real values of x except -5
解 −x2+4x−4>0
Solve −x2+4x−4>0
沒有解
no solution
除 2以外的所有實數x
all real values of x except 2
x=2
解 −x2+4x−4≤0
Solve −x2+4x−4≤0
沒有解
no solution
所有實數x
all real values of x
除 2以外的所有實數x
all real values of x except 2
x=2
解 −x2+4x−4≥0
Solve −x2+4x−4≥0
沒有解
no solution
所有實數x
all real values of x
除 2以外的所有實數x
all real values of x except 2
x=2
解 −x2+4x−4<0
Solve −x2+4x−4<0
沒有解
no solution
除 2以外的所有實數x
all real values of x except 2
x=2
