Unit 1A Review

What is the solution to the following inequality?

3x - 1 < 2x + 4

• x < 5

• x < -1

• x < 3

• x < 1

47 = 2x + 3(5x - 7)

• 1

• 2

• 3

• 4

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides

• Add the 2a and a

• Distribute 4 through the parenthesis to a and -5

• Distribute -4 through the parenthesis to a and -5

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

Write an inequality for Graph 3.

• x ≤ -2 AND x > 5
• x ≤ -2 OR x > 5
• x ≥ -2 OR x < 5
• -2 ≤ x < 5

Which graph represents -2≤x≤3

• Graph 1

• Graph 2

• Graph 3

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

• <, >
• ≤, ≥ 

When graphing the solutions to "OR" inequalities, The shading looks like___

• Shading that connects the 2 dots
• Shading that points away and never crosses.
• Shading that points toward each other and ALWAYS crosses
• Shading that points opposite, but sometimes crosses.

Your taxi fare is $2.50 per mile, plus a $5 fee. You have a budget of $20. Which inequality models this scenario?

• 5x + 2.50 ≤ 20

• 2.50x + 5 < 20

• 2.50x + 5 ≤ 20

• 7.50x < 20

• x > -3 or x > 1

• x < -3 or x < 1

• x ≥ 3 and x ≤ 1

• x > -3 and x < 1