Equation/Inequalities Review

Which point is a solution to the system of inequalities?

• (0, 6)

• (-3, 4)

• (1, 0)

• (-4, 3)

What would be the first step in solving this system?

• Substitute 2x+1 into the x of the equation 5x-2y=3 which results in 5(2x+1)-2y=3

• Substitute 2x+1 into the y of the equation 5x-2y=3 which results in 5x-2(2x+1)=3

• Set 5x-2y equal to 2x+1

• substitute 5x-2y into the y=2x+1 which results in y=2(5x-2y)+1

After substituting 2x+1 for y in the first equation you find that x=5. Find the y-value of the solution to this system?

• 1

• 2

• 10

• 11

^{What is the solution?} 

• 1

• -2

• (1, 2)

• (1, -1)

The cost to rent a rug cleaner for a day is $25 plus $15 per hour. Write an inequality that can be used to show how many hours (x) you can rent the rug cleaner for so that the charges will be less than $130.

Mathematical Equivalence

OFF

The cost to rent a rug cleaner for a day is $25 plus $15 per hour.

Write an inequality that can be used to show how many hours (x) you can rent the rug cleaner for so that the charges will be less than $130.

Mathematical Equivalence

OFF

How many solutions does the graph have?

• One solution

• No solution

• Infinite solutions

This system has an infinite number of solutions, TRUE or FALSE?

• TRUE

• FALSE

When you graph an inequality, you used a solid line when you use which symbols?

• ≤, ≥ 

• <, >

Which graph represents the system of inequalities.

• 
• 
• 
•