Choose the correct description of the graph of the compound inequality: (5 points)
x-1 < or = to 7 or
2x > or = to 22

A: A number line with an open circle on 8, shading to the left, and an open circle on
11, shading to the right

B: A number line with an open circle on 8, an open circle on 11, and shading in
between
closed circle on 11, and shading in

C: A number line with a closed circle on 8,
between

D: A number line with a
closed circle on 8, shading to the left, and a closed circle on
11, shading to the right

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Respuesta :

Answer:

D

Step-by-step explanation:

Firstly,  

≤  or  ≥  means closed circle, and

<   or >  means open circle

Now, let's solve the compound inequality:

x - 1 ≤ 7

x ≤ 8

and

2x ≥ 22

x ≥ 11

This solution means "everything left of 8 (inclusive and closed circle)" and "everything right of 11 (inclusive and closed circle)"

Looking at the choices, D is right.