Question

Mr. Mole left his burrow and started digging his way down.
\[A\] represents Mr. Mole's altitude relative to the ground (in meters) after
\[t\] minutes.
\[A=-2.3t-7\]
How far below the ground does Mr. Mole's burrow lie?

Answer 1

Set t = 0 (when he left the burrow). A(0) = -2.3(0) - 7 = -7 m, so the burrow is 7 meters below the ground.