In y = mx + b form, the slope can be found in the m position and the y intercept can be found in the b position.
y = mx + b
y = 2x + 15
slope(m) = 2 and y int (b) = 15
The initial amount is the y intercept, which is 15. The rate of change (the slope) is 2
example :
baskets picked in 1 hr :
y = 2(1) + 15
y = 2 + 15
y = 17
baskets picked in 2 hrs :
y = 2(2) + 15
y = 4 + 15
y = 19
so the slope ( rate of change) is basically saying for every hr of picking, you pick 2 baskets...so your picking 2 baskets per hr.
The y intercept (15) is telling us that they already had 15 baskets to start with.
Answer:
y = -5x + 7
Step-by-step explanation:
Graph has a slope of -5, which is the gradient
y = -5x + c
To find c you have to sub in the point (2, -3)
-3 = -5(2) + c
-3 + 10 = c
c = 7
Hence equation is:
y = -5x + 7
Answer:
r ≈ 26%
Step-by-step explanation:
Total power generated by wind worldwide doubles every 3 years.
In a particular year, the world wind generating capacity was 85 thousand megawatts.
So, the formula for wind generating capacity W (in thousand megawatts) as a function of t. the number of years in the future will be given by
........ (1)
Therefore, for t = 1 year,
thousand megawatts.
Again, for t = 2 years,
thousand megawatts.
As the continuous growth rate is exponential, so, we can write
⇒ 
⇒ r = 25.99% ≈ 26% (Answer)
