9.30 Equations and Inequalities Review

 $-4x-7\ge21$  

• x ≥ 7

• x ≥ -7

• x ≤ 8

• x ≤ -7

 $8x-4\left(x+8\right)=8$  

• x = 2

• x = 10

• x = 4

• x = -4

Solve:
 $\frac{1}{2}\left(2x+6\right)=3x+13$  

• No Solution 

• x = 8

• x = -5

• x = 7

Pick the correct letter for:
6 > x

• A
• B
• C
• D

What inequality does the number line graph represent?

• x ≤ 4
• x ≥ -4
• x < -4
• x < 4

Which point makes the inequality true?-4x + 9 ≤ -23

• x = - 4
• x = 7
• x = -10
• x = 9

Which situation can be represented by the inequality
15 + 6x ≤ 100?

• Lazer Zone charges $15 plus $6 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $6 plus $15 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $15 plus $6 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $6 plus $15 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?

 $\frac{x}{5}+7=9$  

•  $x=5$  

•  $x=7$  

•  $x=9$  

•  $x=10$  

Write an inequality for Graph 4.

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

S = 3F - 24  Solve for F

• F = (S + 24)/3
• F = S/3 + 24
• F = 3S + 24
• F = 3(S + 24)