A certain mountain has an elevation of 19,649 ft. In 1915, the glacier on this peak covered 4 acres. By 2000 this glacier had melted to only 1 acre. A)Assuming that the glacier melted at a constant rate each year.
B)Use the answer from part A to write a linear equation that gives acreage A of this glacier t years past 1915.

I need to know:

*
What is the acreage of the glacier t years after 1915? A (write in a Linear Equation) Thanks in advance 4 help...I feel so dumb

Question

A certain mountain has an elevation of 19,649 ft. In 1915, the glacier on this peak covered 4 acres. By 2000 this glacier had melted to only 1 acre.  A)Assuming that the glacier melted at a constant rate each year.
B)Use the answer from part A to write a linear equation that gives acreage A of this glacier t years past 1915. 

I need to know:

*
What is the acreage of the glacier t years after 1915? A (write in a Linear Equation) Thanks in advance 4 help...I feel so dumb