Question

Which of the following is not a way to represent the solution of the inequality 2x + 1 less than or equal to 19?

x less than or equal to 9
9 greater than or equal to x
A number line with a closed circle on 9 and shading to the left.
A number line with a closed circle on 9 and shading to the right.

Answer 1

2x + 1 <= 19
-1 -1

2x <= 18
-- ---
2 2

x <= 9

so which ones do represent it?

Answer 2

x less than or equal to 9 is that the same as x <=9 ?

Answer 3

still confused

Answer 4

all but one of these choices are true....by eliminating the true ones, we will find the false one.
is A true?

Answer 5

ohhhhhhh

Answer 6

does <= mean less than or equal to?

Answer 7

it means greater than or equal to

Answer 8

nope, it means less than or equal to.
an easy way to remember is

< if you tilt it over a little it looks like and "L" for less than

> does not look like an L

Answer 9

ohhh

Answer 10

so looking at the first choice

x less than or equal to 9 is that the same as x <=9 ?

Answer 11

yeah

Answer 12

now look at the 2nd one

x <= 9 it is ok if I flip it around as long as I flip the sign to so

x <= 9 can also be written as 9 >= x

look at choice b

9 >= x is that the same as 9 greater than or equal to x

Answer 13

yea

Answer 14

right so

x <= 9

means that x , the answers are less than or equal to 9

where on the number line are the numbers less than 9

to the right or to the left?

Answer 15

left

Answer 16

correct

Answer 17

which one is wrong? C or D

Answer 18

d?

Answer 19

perfect

Answer 20

thanks