Answer:
y = - 6x
Step-by-step explanation:
Note the relation between x and y points on the table, that is
x = - 2 → y = 12
x = - 1 → y = 6
x = 1 → y = - 6
x = 2 → y = - 12
x = 3 → y = - 18
By inspection the y points are x multiplied by - 6, hence
y = - 6x ← is the equation relating x and y
To get the exponential model we use the form:
y=abˣ
where:
a=initial value
b=growth factor
y=number of years
thus using point (1,63) and (2,226)
the growth factor will be:
b=(226/63)=3.587~3.6
a=63
thus the formula for the function will be:
A(y)=a(3.6)^y
substituting (1,63) in the equation and solving for a.
63=a(3.6)^1
thus
a=63/3.6=17.5
hence the formula will be:
A(y)=17.82(3.6)^y
Answer: D] 17.5(3.6)^y
2] The number of acres defoliated after 5 years will be as follows:
y=5 years
A(y)=17.82(3.6)^y
plugging in the value we get:
A(y)=17.82(3.6)^5
simplifying the above
A(y)=10775.07
A(y)=10775
Answer: D
Answer: z= 36 and 2/3
Step-by-step explanation:
1) 
2) Add 4 to both sides to get 
3) Multiply both sides by 5 to get 
Answer:
49
Step-by-step explanation:
you need to multiply all them and get 49
1/14 because you have to have common denominators so you multiply 1/2 by 7/7 and multiply 3/7 by 2/2 so you end up getting 7/14 - 6/14 = 1/14
