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
16 tiles will fit on a back splash that is 8ft long
f(d) = 11(1.01)^d
Part A:
f(d) = 11.79
11.79=11(1.01)^d (1.01)^d = 11.79/11 (1.01)^d = 1.071818 d = log 1.071818 /log 1.01
d = 6.97
Part B:
y- intercept is obtained when domain = 0
d = 0 ⇒ f(0) = 11(1.01)^0 = 11*1 = 11
f(d) = 11
Part C:
Average rate of change
A.f/Ad=
(f(7)-f(2))/(7-2) = (11(1.01)^7-11(1.01)^2)/5 = 0.57/5 =
Answer:
(x + 3) ( x - 6)
Step-by-step explanation:
x² - 3x - 18
x² - 6x + 3x - 18
x(x - 6) + 3(x - 6)
(x + 3) ( x - 6)
Answer:
Use the value the problem statement tells you. Otherwise, use a better approximation.
Step-by-step explanation:
π ≈ 3.141592653589793238... (a non-repeating infinite decimal)
3.14 = 3.14
22/7 = 3.142857142857_142857
355/113 = 3.14159292035... (a very long repeating decimal)
You can see that the third decimal place is wrong in both of your approximations. The last approximation shown has 7 good decimal digits. A good scientific or graphing calculator will have an internal value for pi that is good to 10 or 12 digits or more (preferably, at least 32 digits).
You should use a value for pi that has at least one more digit of accuracy than the number of significant digits in your answer.