Which of the following statements is true?

In a set of ordered pairs (x_i , y_i ), what do you call the set of the first coordinates?

What is the domain of the set of ordered pairs {(1,2), (2,4), (3,6), (4,8)}?

Which of the following points describes the x-intercept a?

What do you call the part of a conditional statement that follows “if” when written in if-then form?

“If John does his chores, then he will get a big scoop of strawberry ice cream. Which of the following represents the hypothesis in the above conditional statement?

 Which of the following functions is linear?

Which of the following pairs of statements are equivalent?

What do you call the form of reasoning that uses specific examples to arrive at a general rule, generalizations, or conclusion?

What is an indirect proof?

Which of the following is a system of linear inequalities in two variables?

Which of the following is NOT a solution of the system of linear inequalities in two variables – x + 4y ≥ −5 and 5x + 2y > 8?

Which of the following table of values shows a relation that is a function?

Kert wants to know the effect of the new fertilizer on the growth of her plants. In the situation, what is the independent variable?

If you do your homework, then you will receive snacks. What do you call the underlined portion in this conditional statement?

“Squares have right angles”. How do you express the statement into if-then form?

Which of the following best describes the contrapositive of a conditional statement?

Which of the following best justifies the conclusion in a deductive reasoning?

Flord bought three apples and two oranges. The total amount she paid was at most Php123. If x represents the number of apples and y the number of oranges, which of the following mathematical statements represents the given situation?

A. 

Which of the following relations is a function?

Philippine Eagles have wings. Pag-asa is a Philippine Eagle. Using deductive reasoning, what can you conclude about Pag-asa?

Russel is using two mobile networks to make phone calls. One network charges her Php 5.50 for every minute of call to other networks. The other network charges her Php 6 for every minute of call to other networks. In a month, she spends at least Php 300 for these calls. Suppose she wants to model the total costs of her mobile calls to other networks using a mathematical statement. Which of the following mathematical statements could it be?

James is asked what inequality symbol to be used to translate at most in the mathematical sentence 5 times a number y plus 2 times a number x is at most 15. His answer is <. Is he correct?

1. Mike earn 300 per hour at the bookstore. The total amount of his paycheck is represented by P(h) and h is the number of hours he works. If he worked for 7 hours, what is his total paycheck that day?

Jenny asked her friend, Jacky, to help her write the contrapositive of the statement “If you are a second-year student, then you are a sophomore”. To write it correctly, which of the following should be the answer of Jacky?