One-step inequalities
x+7>12
x>5
2x+3>11
x>4
≤
less than or equal to
x>5
How do you show (x+7>12) on a numberline?
open dot at five
your arrow points left
y−5≤9
y≤14
-5y−3≤18
y ≥ -3
≥
greater than or equal to
4y−6+2≤184
y≤5.5
How do you show (3x<15) on a numberline?
open dot at five
arrow points right
3x<15
x<5
z/3 + 4 < 10
z < 18
<
less than
z/2+7−1<10
z<8
How do you show (5b−9+3≤195) on a numberline?
closed dot at five
arrow points left
a/4 ≥ 6
a ≥ 6/4
1 and 1/2
or 1.5
4a−6≥14
a≥5
>
greater that
3a+8−4≥163
a≥4
How do you show (-5y−3≤18) on a numberline?
closed dot at -3
arrow points right
b+10≤18
b≤8
3b+9≤21
3≤4
When given an equal sign with a dash through it, what is the expression asking?
not equal to
5b−9+3≤195
b≤5
How do you show (b+10≤18) on a numberline?
closed dot at 8
arrow points left