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Algebra
Pregunta

2. The table shows the soil density of several soi...

2. The table shows the soil density of several soil samples at different depths. 

(a) Write the quadratic regression equation that models the data. Let \( x = \) depth below the surface and let \( y = \) soil density. (b) Use the equation to estimate the soil density of a sample at a depth of \( 20 m \) . Show your work. 

Answer

a)

\(y= -0.5x^2+ 23.4x+ 996\)

Solución
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