Answer:
15 2⁄9
Explanation:
1999 to 1990 → 9-year lifespan
137 = −412 + 549
15 2⁄9 = 137⁄9
I am joyous to assist you anytime.
solve for "a", once you get "a", plug it back into either equation to get "b"
Answer:
-5/4
Step-by-step explanation:
slope = rise/run
Start at the lower right point. Go up 5. The rise = 5. Go left 4. The run -4.
slope = 5/-4 = -5/4