Which notation is expressed in interval notation for x ≤ -2? a. (-∞, -2] b. (-∞, -2) c. (-2, ∞) d. [-2, ∞) Which notation represents the compound inequality in interval notation? x ≥ -2 and x

Question

Which notation is expressed in interval notation for x ≤ -2? a. (-∞, -2] b. (-∞, -2) c. (-2, ∞) d. [-2, ∞) Which notation represents the compound inequality in interval notation? x ≥ -2 and x < 1 a. xE (-2,1) b. xE [-2,1) c. xE(2, ∞) d. xE (-∞,-2] Which conjunction or disjunction is equivalent to the given absolute value inequality? |x+2| < 18 a. x + 2 < 18 and x + 2 > -18 b. x + 2 < 18 or x + 2 > - 18 c. x + 2 > 18 and x + 2 < -18 d. x + 2 > 18 or x + 2 < -18

welshfella · Answer

Note :-  square parentheses ([ or ]) are used  when we have less than OR equal to  and greater or equal to ,  and round parentheses for < or >.

welshfella · Answer

For negative and positive infinity  round parentheses are used.

welshfella · Answer

this should help you with question 1.

welshfella · Answer

why dod i drive everybody away!??  lol