M!
what is the domain of the function in #4?
{1, 3, 5, 7}
{1, 3}
{0, 1}
{0, 1, 2, 3}
what is the range of the function in #4?
{1, 3, 5, 7}
{1, 3}
{0, 1}
{0, 1, 2, 3}

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it