First Summative Test in Mathematics (3rd Quarter)

Translate into mathematical statement:

An employee’s salary S varies directly as the number of days d he has worked.

Which table of values shows direct variation?

The value of y varies directly with x.  Which equation represents the relationship between x and y if y = 14 when x = 6. 

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is ₱8000.00 for 20 hours of work. What is the constant of variation?

Which of the given graphs is a direct variation?

What is the constant of proportionality based on the table if y varies directly as x?

Which of the following equations shows direct variation?

What type of variation does the equation $$y=\frac{x}{5}$$ represent?

The cost (C) of labor varies jointly as the number of workers (W) and the number of days (D) they work. If 10 men working 8 days each are paid Php560,

Which of the following is the value of the variation constant?