Question

when you drive a car at the same speed, the longer you drive, the farther you go. time and
an inverse variation example:
in science, boyles law says that for a gas in a closed container, when the volume gets smaller
in engineering, direct and inverse variation help design machines, engines, and buildings. for

• in electricity, voltage and current go up together (direct variation).
• in flying, wing size and air pressure go in opposite directions (inverse variation).

understanding these patterns helps scientists and engineers solve real - world problems.
1 multiple choice 25 points
what is an example of a direct variation?
as time increases, distance increases
as pressure increases, volume increases
as distance increases, time decreases
as volume increases, pressure increases
2 multiple choice 1 point
what is an example of an inverse variation?
when speed increases, distance increases
when volume gets smaller, pressure gets higher
the longer you work, the more money you make
the bigger the wing, the faster the plane goes

Explanation:

• For direct variation, two variables change in the same direction. When speed is constant, as time increases, distance increases (distance = speed×time).
• For inverse variation, two variables change in opposite directions. According to Boyle's Law, for a gas in a closed - container, pressure and volume are inversely related (PV = constant).

Answer:

1. A. As time increases, distance increases
2. B. When volume gets smaller, pressure gets higher