Answer:
y = 0.75x + 2 ft
x = 24 yrs
Step-by-step explanation:
slope is (9/12) = 0.75 ft/yr
Y intercept is original height of tree 5 - 4(0.75) = 2 ft
y = 0.75x + 2
20 = 0.75x + 2
18 = 0.75x
x = 24 yrs
Answer:
C
Step-by-step explanation:
The formula to find the slope of a line is:
(y2 - y1) / (x2 - x1)
We can substitute the points (-4, 7) and (5, -8) to find the slope:
(-8 - 7) / (5 - (-4))
(-15) / (5 + 4)
(-15) / 9
This can be simplified to
- 5 / 3
which is option C
For A, you take 70% of 421,000 and subtract that from 421,000. You should solve like this: 421,000 - (0.7 x 421,000).
For B, you take 40% of 31.50 and add it to 31.50. (31.50 + (31.50 x 0.4).
This is all I can give for now. Glad to help you!
