Answer:
Ela segue esse modelo
f(x) = ax + b
Então, é só substituir os valores de x e de y na Lei de Formação
Ex: quando x=0, y=-1
y= ax+b
-1=a.0+b
b= -1
È onde a reta toca o eixo y, porque x=0
Agora, vamos usar outro par ordenado.
Quando x=2, y=3
3=a.2+(-1)
3=2a-1
3+1=2a
4=2a
a=4/2
a=2
A lei de formação é essa
a= 2; b=-1
f(x)= ax+b
f(x)=2x-1
Answer:
Step-by-step explanation:
Let, 
Now, us simplify the given differential equation and write it in terms of D,
or, 
or, 
We have our auxiliary equation:
or, 
or, 
Therefore our solution is,
and, 
Applying the boundary conditions, we get,
Solving them gives us,
Hence,
Answer: 72 feet
Step-by-step explanation: 1 yard is equal to 3 feet, so if there are 24 yards, we can multiply 24 by 3. This can be shown using the following formula: y · 3 = f (where y = number of yards and f = feet.) So:
24 · 3 = 72
