SOL Review Day before the SOL

Front

What does the Quotient (Division) Rule state about exponents of the same variable?

Back

They are subtracted from each other.

Front

What is the formula for direct variation in terms of y?

Back

y = kx

Front

Does the equation show an inverse variation? y = \frac{10}{x}

Back

Yes.

Front

2x + y = 0 is an example of a direct variation. What is the constant of variation?

Back

-2.

Front

What is the definition of direct variation?

Back

A relationship between two variables where one is a constant multiple of the other.

Front

What is the definition of inverse variation?

Back

A relationship where the product of two variables is constant.

Front

If y varies directly with x, and y = 10 when x = 2, what is the constant of variation (k)?

Back

k = 5.

Front

What is the general form of an inverse variation equation?

Back

y = \frac{k}{x}.

Front

What does the term 'constant of variation' refer to?

Back

The constant (k) that relates the two variables in direct or inverse variation.

Front

If y = 3x, what happens to y if x is doubled?

Back

y is also doubled.