The function:
f ( x ) = x * 0.965^t
where x is the initial amount and t is the number of the years
80 = x * 0.965^3
80 = x * 0.89632
x = 80 : 0.89632 ≈ 89
Answer:
The initial amount of animals was 89.
0,30,80,140
Median- 55 (30+80) ÷2
Q1- 15 (0+30) ÷2
Q3- 110 (80+ 140) ÷2
Hope this helped. (:
Answer:
10
Step-by-step explanation:
Answer:
y = 10x - 8
Step-by-step explanation:
The slope is "m", or how much the y-value changes on a line when the x-value changes by one.
The y-intercept is the y value of the line when it is intersecting the y-axis, or when the x-value is 0.
To find the slope, take 2 points from the graph and plug into the slope formula:

I'll use (0, -8) and (1,2).
Plug into the formula.


10
Slope = 10
To find the y-intercept, look at the table. What is the y-value when the x-value is equal to 0?
-8
y-intercept: -8
Slope-Intercept form:
y = mx + b
m: slope
b: y-intercept
y, x: leave as variables
y = 10x - 8
Answer:
(0,-1) x = 0, y = -1
Step-by-step explanation:
You can first re-arrange the items to y= (something) or x=(something) in the first equation. Then, lets say we use y=(something) and subsitute it for the why in the second equation. 5x+9(something)=-9.