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The table below models a particular physical situation.

x −9, −3, 4 ,10

y 9, 1, −7, 10


Find the piecewise linear equation that models the data above. Round to three decimal places if needed.
y={

___ x + ___. −9 ≤ x ≤ −3

___ x + ___. −3 < x ≤ 4

___ x + ___. 4 < x ≤ 10