What is the slope of the line that passes through the points (5,-25) and (10, -15)

All you need to do is use the slope formula: y₂ - y₁/x₂ - x₁.

Always simplify the fraction!

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.

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