SECOND QUARTER SUMMATIVE

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

• 𝐴𝑥+𝐵𝑦<𝐶

• 𝐴𝑥+𝐵𝑦≤𝐶

• 𝐴𝑥+𝐵𝑦≥𝐶

• All of the options

Which of the following ordered pairs is a solution of 𝒚<𝟐𝒙+𝟐?

• (0,2)

• (5,1)

• (−4,6)

• (-7,0)

What do you call the example of two linear inequalities of the same variable that are considered together?

• Two linear Inequalities in Two Variables

• System of linear Equalities in two variables

• System of linear inequalities in two variables

• Two linear Equalities in Two Variables

Alfred lost his coin purse which contains at most 40 coins of Php 5 and Php 10. The value of his money is at least Php 170. Write a system of inequalities to express this situation.

• 
• 
• 
• 

In the statement “The more students focus on studying, the greater the chance they will have good grades.”, which one is the dependent variable?

• more students

• focus on studying

• good grades

• greater chance

How will you describe this correspondence?

• one-to-one

• many-to-one

• one-to-many

• many-to-many

Which of the following does not show a function?

• 
• {(8, 2), (4, -5), (3, 0), (8, -1)}

• {(8, 0), (7, 0), (6, 0), (5, 0), (4, 0)}

• 

It is the collection of all second values?

• domain

• range

• y-axis

• x-axis

State the domain and range of this image?

• DOMAIN: {𝒙|𝒙𝝐ℝ}

  (−∞,+∞)

  RANGE: {𝒚|𝒚≥𝟎}

  [𝟎,+∞)

• DOMAIN: [−𝟒,+∞)

  {𝒙|𝒙≥−𝟒}

  RANGE: [𝟎,+∞)

  {𝒚|𝒚≥𝟎}

• DOMAIN: [-3,3]

  {𝒙|−𝟑≤𝒙≤𝟑}

  RANGE: [1,5]

  {𝒚| 𝟏≤𝒚≤𝟓}

• DOMAIN: (0,3]

  {𝒙|𝟎<𝒙≤𝟑}

  RANGE: [−4,1)

  {𝒚|−𝟒≤𝒚<𝟏}

Based on the graph, the solid dot indicates that...

• The solid dot indicates that one or two points do not belong to the graph.

• The solid dot indicate that only one point belongs to the graph.

• The solid dot indicates that the point does not belong to the graph.

• The solid dot indicate that a certain point belongs to the graph.