The depth of snow melting on a sidewalk changes over time. The equation below represents
the depth (d) in inch(es) as time (t) passes. How many inches deep is the snow just before
it begins to melt?
d = -0.51 + 7
0.5 inch
7 inches
-0.5 inch
-7 inches
![The depth of snow melting on a sidewalk changes over time The equation below represents the depth d in inches as time t passes How many inches deep is the snow class=](https://us-static.z-dn.net/files/db5/351b45d5582215378dae79cae5dae775.png)