Which of the following represents the correct equation if *y* is directly proportional to *x*?

The area of a triangle varies jointly with its base (*b*) and height (*h*). If the area is 10 when b=4 and h=5, what is the area when b=6 and h=3?

Given that *y* varies inversely as the square root of *x*, if *x* increases by a factor of 4, how does *y* change?

Which scenario best represents a direct proportion relationship?

If *z* varies jointly as *x* and *y*, and *z* = 12 when *x* = 2 and *y* = 3, find *z* when *x* = 4 and *y* = 5.

If the area of a square is directly proportional to the square of the side length, and a square with side length 3 has an area of 9, what is the area of a square with side length 5?

The amount of money you have, *m*, is directly proportional to the number of ice creams you have, *i*. Which of the following is/are true?

If *a* is directly proportional to the square of *b*, which of these equations describes the relationship?

If *y* is inversely proportional to *x* and *y* = 4 when *x* = 3, find *y* when *x* = 6.

If *a* is directly proportional to *b* and *a* is 10 when *b* is 2, what is the value of *a* when *b* = 5?

If *y* is inversely proportional to *x*³, and *y* = 2 when *x* = 2, then what is the constant of proportionality?

The volume of a gas, *V*, is inversely proportional to its pressure, *P*. If *V* = 10 cubic units when *P* = 2 atm, what is *V* when *P* = 5 atm?

Which scenario describes direct proportion?

In the context of proportion, which statement best describes an indirect proportion?

If *y* is inversely proportional to *x*, which statement is true?

The braking distance, *d*, of a car is directly proportional to the square of its speed, *s*. If the braking distance is 6 meters when the speed is 10 m/s, what is the braking distance when the speed is increased by 200%?

Which of the following statements best illustrates the concept of inverse variation?

The amount of simple interest earned, *I*, is directly proportional to the principal, *P*, the rate, *R*, and the time, *T*. Which of the following equations represents this relationship, where k is a constant?

If the volume (V) of a sphere is proportional to the cube of its radius (r), which of these equations is correct?

If *y* varies jointly as *x* and the square root of *z*, and *y* = 12 when *x* = 2 and *z* = 9, find *y* when *x* = 4 and *z* = 4.

The time (*t*) to cook a roast is directly proportional to its weight (*w*). If a 2-kg roast takes 1 hour to cook, how long will it take to cook a 3-kg roast?

If *y* varies inversely as *x*², which of the following is the correct equation?

The time it takes to complete a job is inversely proportional to the number of people working. If 3 people take 12 hours to complete a job, how long would it take 4 people?

The resistance (R) of a wire is directly proportional to its length (L) and inversely proportional to its cross-sectional area (A). Which equation describes this relationship?

If *z* varies jointly with *x* and the square of *y*, then which of the following equations is true?

Given that *y* varies inversely as *x*², and *y* = 4 when *x* = 1.5, what is the value of *y* when *x* = 3?

If *y* varies inversely as *x*, and *y* is 5 when *x* = 2, then what is the value of *y* when *x* = 10?

If *a* is directly proportional to the square root of *b*, and *a* = 6 when *b* = 9, then find *a* when *b* = 4.

The time, *t*, taken for a journey at a fixed speed is inversely proportional to the number of people, *n*, travelling. If *t* = 10 hours when *n* = 5, what is the formula?

The number of pages in a book, *p*, is inversely proportional to the number of words on each page, *w*. Which equation correctly describes this relationship?

A rectangular garden has a length of *L* meters and a width of *W* meters. If the area of the garden is fixed, which of the following is true?

If *y* is inversely proportional to the square root of *x*, and *y* = 6 when *x* = 4, find *y* when *x* = 9.

If *a* is inversely proportional to *b*, and *a* is doubled, what happens to *b*?

If *y* is directly proportional to *x*, and *y* = 6 when *x* = 2, what is the constant of proportionality?

If *x* varies inversely as the square of *y*, and *x* = 4 when *y* = 3, what is the formula connecting *x* and *y*?

The pressure exerted by a gas on the walls of a container is inversely proportional to the volume of the container. If the volume of the container is halved, what happens to the pressure?

If *a* varies inversely with *b*, and *a* = 3 when *b* = 4, find *a* when *b* = 6.

If y varies inversely as x, what happens to y if x is tripled?

The force of gravity between two objects is inversely proportional to the square of the distance between them. If the distance between two objects is increased by a factor of 3, the gravitational force between them will be:

If *x* is directly proportional to *y*, and *x* = 10 when *y* = 2, find the value of *x* when *y* = 7.

If *a* varies jointly as *b* and *c*, which equation represents the relationship, where *k* is the constant of proportionality?

The variable *a* is directly proportional to *b*, and *a* = 6 when *b* = 2. Which of the following equations is correct?

The number of apples you can buy with a fixed amount of money varies inversely with the price of each apple. If you can buy 10 apples when each apple costs $1, how many apples can you buy if each apple costs $2?

If *a* is inversely proportional to the cube of *b*, and *a* = 2 when *b* = 2, find *a* when *b* = 4.

If *y* varies jointly as *x* and *z*, and *y* = 20 when *x* = 2 and *z* = 5, find *y* when *x* = 3 and *z* = 4.

If *a* is inversely proportional to *b* and *a* = 2 when *b* = 6, what is *a* when *b* = 3?

If *y* is directly proportional to *x* and *z*, which equation expresses the relationship, where k is a constant?

If *y* is jointly proportional to *x* and *z* and *y* = 30 when *x* = 2 and *z* = 3, find *y* when *x* = 4 and *z* = 5.

Which of the following best describes the relationship between the number of hours worked and the amount of money earned if you earn a fixed hourly wage?

Which of the following are true statements about direct proportion? (Where *k* is the constant of proportionality)