MATH 8 QUARTER 2 SUMMATIVE TEST

Which of the following is a linear inequality in two variables?

• 4x – 3y = 5

• 7y + 3 < 12

• 3x ≥ 14

• 11 + 2y ≤ 3x

What is the graph of a linear inequalities in two variables?

• straight line

• parabola

• half-plane

• half of a parabola

The following is a solution of 2x + 5y > 8, EXCEPT.

• ( -1, 2)

• (- 1, 3)

• ( -2, 3)

• (-2, 4)

How many solutions does a linear inequality in two variables have?

• 0

• 1

• 2

• infinite

Which of the following statements below best differentiate linear equations from linear inequalities?

• Linear equations are mathematical statements with no solutions while linear inequalities are mathematical statements with solutions.

• Linear equations are mathematical statements with equal sign while linear inequalities are mathematical statements with inequality sign.

• Linear equations are mathematical statements that cannot be graphed while linear inequalities are mathematical statements that can be graphed.

• Linear equations are mathematical statements with more than 2 variables while linear inequalities are mathematical statements with only one variable.

Which graph below is a graph of linear inequality in two variables?

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• 
• 
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To get a passing mark in school, a student must have a grade (g) of at least 75. Which of the following mathematical statement represent the given situation?

•    g ≤ 75                        

• g = 75           

• g ≥ 75     

• none of these

A relation where every input yield one and only one output is called what?

• domain              

• function               

• range  

• relation

A set of ordered pairs is called what?

• domain

• function

• range 

• relation

Jenny bought three carrots and two cauliflowers. The total amount she paid was at most P140. If x represents the cost of each carrots and y the cost of each cauliflower, which of the following mathematical statements represents the given situation?