Real Life One Step Equations and Inequalities

The solution of the inequality x < 3 would be

• all numbers from 3 to negative infinity

• all numbers which are less than three

• all numbers greater than 3

• all numbers from three to eternity

Which number is a solution to 5x + 2 > 17

• -2

• 2

• 4

• 0

Which number is a solution to the inequality
-5x + 2 > 13

• 3

• 2

• 0

• -4

Does -2 < x mean the same thing as x > -2?

• Yes

• No

y - 13 ≤ -15

• y ≤ 2

• y ≤ -2

• y ≤ 28

• y ≤ -28

The solution set of the inequality r - 14 ≥ 17 is: (a)   .

• r ≥ 3

• r ≥ -31

• r ≥ 31

• r > -3

Pick the correct inequality.

• A

• B

• C

• D

w + 4 ≤ -5

• w ≤ -9 

• w ≥ -9

• w ≤ -1 

• w ≥ -1

Inequalities are solved exactly like equations, with one exception:

• When the variable is on the right, the answer is always zero.

• When the last step is multiplying or dividing by a negative number, you have to reverse the direction of the inequality symbol.

• There will never be parentheses in an inequality.

• What you do to one side of an equality, you must do to the other side.

"Speed Limit 65 mph " is an example of a real life inequality.

• True

• False