Quizziz #1

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

• ≤, ≥ 
• <, >

What inequality does the number line graph represent. 

• x < 2
• x > 2
• x ≥ 2
• x ≤ 2

Pick the correct inequality.

• A
• B
• C
• D

Match the graph with its inequality.

• 11 < a
• 11 > a
•  11 ≤ a
•  11 ≥ a

What are the two basic rules for solving algebraic equations?

• Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal sign

• Negative signs can be ignored

• Always start on the left side, regardless of where the variable is

• Always do the opposite operation

Solve:

2(2x + 3) = -6(x + 9)

• x = 1.2

• x = 6

• x = -6

• x = 7.5

 Solve the equation for x.
-8x - 8 + 3x - 6 = -3x + 2

• x = -8
• x = 8
• x = 2
• x = -2

3x - 8 < 3(x - 4) + 1

• x < -11

• no solution

• all real numbers

• x > -8

Write an equation to represent this word problem.

• 40 - 2f = 8

• 40 + 2f = 8

• 8 - 2f = 40

• 40 = 2f - 8

Solve the equation for y. 
2x + 3y = 4

• y = (4-2x)/3
• y = (2x-4)/3
• x  = (4-3y)/2
• y = (4-2x)/ -3