Open Closed Inequality Circles

-2 < x - 9 < 3

• x < 12

• 7 < x

• 7 < x < 12

• x > 7 or x < 12

Every day, a man needs to eat more than 1800 but less than 1900 calories. Write an inequality representing the possible amount of calories you could get.

•  1800 ≤ c ≤ 1900

• 1800 ≤ c < 1900

• 1800 < c ≤ 1900

• 1800 < c < 1900

−6 < 2t − 5 < 3

• −0.5 < t < 1

• 0.5 < t < −1

• −11/2 < t < 2

• 11/2 < t < −2

• Graph 1

• Graph 2

• Graph 3

• Graph 4

What inequality is being represented?

When graphing an inequality, you use an open circle when you use which symbol?

• <, >

• ≤, ≥

When you graph an inequality, you used a closed circle when you use which symbols?

• ≤, ≥

• <, >

Which compound inequality is graphed above?

• d < 2
• d > 2
• d ≥ 2
• d ≤ 2

Which inequality is represented by this graph?

•  2.75 > d

• 2.75 < d

• 2.75 ≥ d

• 2.75 ≤ d