Equations and Inequalities Review

What is the coefficient?

What is the constant(s) ?

What is the variable ?

What is the goal when solving equations and inequalities?

• Isolate the variable- Get it ALONE!!

• The value of the variable

Karis has $900 in the bank. Every time she rides the bus she spends $2. Write an inequality that Karis can use to see how many time she can ride the bus and still have more than $500 in the bank.

(a)  

• 900 + 2x < 500

• 900 + 2x > 500

• 900 - 2x > 500
• 900 - 2x < 900

Shaan bought a video game console and some games for $350. The video game console cost $200. Each game cost $25. Write an equation that represents how many games Shaan purchased.

• 350 + 25x = 200

• 200 + 25x = 350

• 200 + 25x > 350

• 200x + 25 = 350

Where did Rajendra make an error in his calculation?

• Step 1

• Step 2

• Step 3

• Rajendra is correct.

Terms are normally separated by using which of the following?

Match each statement with the correct graph.

• y ≤ 6

• 
• y < 6

• 
• y ≥ 6

• 
• y > 6

• 

Match the following.

Expression - (a)  

Equation - (b)   ​ (c)  

Inequality - (d)   ​ (e)  

• No solution
• 1 solution
• more than on solution
• Comparison signs
• Equal sign