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Level 207

Inequalities


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compound inequality
Two separate inequalities joined by AND or OR.
equivalent inequalities
Inequalities that have the same solutions
inequality
A mathematical sentence that shows the relationship between quantities that are not equivalent
intersection
The graph of a compound inequality with "and" in which the solution is the overlapping or what is shared.
solution of an inequality
Any number that makes the inequality true
union
The graph of a compound inequality with "or" in which the solution is all points that satisfy one or the other or both inequalities.
2n+6<4
n<-1
5n-4>11
n>3
2x+5<6
x<1/2 or x<0.5
Towards the larger numbers (right)
If the inequality is 2<x, which way do you draw the arrow on the number line?
-7x>-21
x<3
42>6+9x
4>x
open circle
< and > uses what type of circle
closed circle
< and > underlined is what type of circle
Negative
Counting from the decimal point to the left makes the exponent ___________________________________
x < 3
2x + 1 < 7
n-5<15
n<20
2x<9
X<4.5
x < -4
5x - 10 < -30
3-2x>17
x < -7
towards the smaller numbers (Left)
If the inequality is -4>x, which way do you draw the arrow on the number line?
less than
<; the number to the left is FEWER than the number to the right
less than or equal to
< that is underline stands for
greater than
>; the number to the left of the sign is MORE than the number to the right
greather than or equal to
> that is underline stands for
No
Does a line under < change the direction on the arrow
No
Does a line under > change the direction on the arrow
Coefficient
The inequality will change only if the _______________________ is negative.