Write an inequality for the situation. all real numbers y that are less than 4 or greater than 9 A. y ≤ 4 or y ≥ 9 B. 4 < y < 9 C. y < 4 or y > 9 D. y < 9 or y &g…

Question

Write an inequality for the situation. all real numbers y that are less than 4 or greater than 9

A. y ≤ 4 or y ≥ 9

B. 4 < y < 9

C. y < 4 or y > 9

D. y < 9 or y > 4

Answer 1

Answer: Hello mate!

The notation:

a < b

means that the number b is bigger than the number a, and the notation:

a ≤ b

means that the number b is bigger or equal than the number a.

"all real numbers y that are less than 4"

this is written as:

y < 4

"all real numbers that are greater than 9"

this is written as:

y > 9

then, the situation can be written as:

y <4 and y >9, which means that the right answer is option C.