MATH / NUMERICAL METHODS
Estimate a value between two known points using a straight-line change assumption. Review the equation, substituted values, result context, and modelling limits in one guided workspace.
Use boundary
Estimate a value between two known points using a straight-line change assumption. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
y = y_1 + (x-x_1)(y_2-y_1)/(x_2-x_1)
What you provide
What you receive
Use boundary
The relationship between the two points is assumed linear.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors