y = -1/2x + 5 should be your equation because it is 5 ft above sea level and its eroding, or going down, 1 ft per 20 years. So every year, the sand dune erodes 1/20 ft more.
Hope this helps!
You seem to have forgotten to add in the y-intercept or slope. For the information you have given, it could be any equation, so long as it passes through the point (2, -1), such as
y = -x + 1
Answer:
Step-by-step explanation:
Answer:
A: 11,13, 290
B: 7,24,25
Step-by-step explanation:
A &B both form a right triangle not C
