Basic Algebra Review

What inequality does the number line graph represent?

• x > 5

• x < −5

• x ≥ 5

• x ≥ −5

What inequality does the number line graph represent?

• x ≤ -4

• x ≥ -4

• x < -4

• x < 4

What inequality does the number line graph represent?

• x≥ 3

• x > 3

• x < -3

• x ≤ 3

Which graph matches the inequality k < 3?

• A

• B

• C

• D

Mathematical Equivalence

ON

Combine like terms
7n + 8p + n + p

• 8n + 9p

• 9p + 8n

• 7n + n + 8p +p

• 7nn + 8pp

Simplify:

10x² + 3x - 6x² - 5x + 2

• 4x² - 2x + 2

• 4x² - 2 + 2

• 64x² - 2x + 2

• 4x² - 2x

Rewrite the expression by combining like terms.
2x² + 10x + 5x² + 25x

• 3x² + 3xy + 6y

• 6y² + 2xy + 2x

• 7x² + 35x

• 3x² + 6xy + y

Match the graph with its inequality.

• a > 11

• a < 11

• a ≥ 11

• a ≤ 11

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

• ≤, ≥ 

• <, >

• ≤, <

• ≥, >