Answer:
its the last one
Step-by-step explanation:
(0,-2) (3,2)
m = -2-2 / 0-3 → m = -4/-3 → m = 4/3
y = 4/3x - 2
To check if your answer is correct, choose any of the two coordinates. Plug the x and y in the equation. For example, use (3,2).
2 = 4/3 (3) -2 → 2= 12/3 -2 → 2 = 4 - 2 → 2 = 2. So if you get an answer like this, it means it's correct.
Subtitute a = b + 1 to a + b = 1.1
b + 1 + b = 1.1
2b + 1 = 1.1 |subtract 1 from both sides
2b = 0.1 |divide both sides by 2
b = 0.05
Subtitute the value of b to a = b + 1
a = 0.05 + 1 = 1.05
Answer: a = 1.05 and b = 0.05
Answer:
120 MW/hour
Step-by-step explanation:
The formula of the average rate of change between two points in a function is:
Average rate of change (ARC) = f(x2) -f(x1)/(x2-x1)
Let's think the power demad as a function d(x) depending of the hour of the day, so the variable x= hour of the day.
Now we have:
d(5)= 1600
d(8)= 1960
If we apply the mentioned ARC formula = [d(8)-d(5)] MW/(8-5)hour= (1960-1600)MW/3hour= 360/3=120 MW/Hour
