Question

vocabulary compare interpolation and extrapolation. interpolation is using a graph or its equation to approximate a value between two known values. extrapolation is using a graph or its equation to predict a value outside the range of known values.

Explanation:

The problem is about comparing interpolation and extrapolation. Interpolation estimates values between known data points (using graph/equation for between - known - values approximation), while extrapolation predicts values outside the range of known data points (using graph/equation for outside - known - range prediction). The given definitions in the problem match these concepts.

Answer:

Interpolation: using a graph or its equation to approximate a value between two known values.
Extrapolation: using a graph or its equation to predict a value outside the range of known values.