Inequalities and Functions

Which of the following relations is a function?

• { (2, 5) , (4, 7) , (2, 1) , (5, 9) }

• { (1, 8) , (4, 8) , (-3, 8) , (8, 8) }

• { (0, 1) , (1, 2) , (2, 1) , (1, 5) }

• { (2, 5) , (7, 7) , (5, 13) , (5, 12) }

Which function has a slope of 0?

• y = 2

• x = 0

• y = x

• x = 2y

• Rational Function

• Rational Equation

• Rational Inequality

• None of these

What is the solution to the absolute value inequality in interval notation?

• [-5, 3)

• (5, 3)

• (-5, 3)

What is the correct function for the graph?

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• 
• 
• 

What is the graph of the compound inequality?

• 
• 
• 
• 

• 2

• 1

• 3

Which of the following equations match the given graph?

• x ≥ -1

• x ≤ -1

• x > -1

• x < -1

Write the linear inequality in standard form for this situation: Ms. Skittles is ordering pizzas and breadsticks for a school party and has a budget of no more than $81. An order of breadsticks costs $7 and a pizza costs $13. 

• 7x + 13y < 81

• 7x + 13y ≥ 81

• 7x + 13y ≤ 81

• 7x + 13y > 81

• $.75 each day

• $1.75 each day

• $.33 each day

• $4.50 each day