Writing
A number x is greater than 12 or less than or equal to -4
x > 12 OR x ≤ -4
Is the statement true
2X > 3
X = -3
False
x < -2 OR x > 2
open circles at -2 and 2; shade w/ arrows going out
4x + 3 < 7
What is:
x < 1
4 < f + 6 < 5
What is:
-2 < f < -1
A number m fails to reach -10 or exceeds 25.
m < -10 OR. m > 25
Is the statement true?
-2K + 30 > -10
K = -20
False
-1 < x < 2
open circles at -1 and 2; shade between
2x - 5 > - 11
What is:
x > -3
p - 2< -2 OR p - 2 > 1
p < 0 OR p > 3
A number n is no more than 3 or at least 7
n ≤ 3 OR n ≥ 7
We use an open circle to represent the inequalities < and > ?
True
x < -3 or x ≥ 1
open circle at -3, closed circle at 1; shade w/arrows going out
-9x + 1 > -71
What is:
x < 8
-3p + 1 < -11 OR p + 4 < 6
p > 4 OR p < 2
A outdoor temperature t is under 32 degrees or no less than 90 degrees.
t < 32 OR. t ≥ 90
If graphing 5>x, we would put an open circle on 5 and shade to the right.
False.
x ≥ -4 and x < -1
closed circle at -4, open circle at -1; shade between; AND
v/3 + 14 < 30
v < 48
8 < 4d + 12 < 32
-1 < d < 5
A number x ranges from 15 to 30, inclusive.
15 ≤ x ≤ 30
x = 4 is a solution to the inequality 3x - 7 > 2
TRUE
substitute in 4 for x:
3(4) - 7 > 2
5>2 TRUE
*challenge/not typical*
x > 2 or x ≥ 0
closed at 0; shade right
11 < 2 - 3x
x < -3
-12 < -3x + 6 < -6
4 < x < 6