b + 8 =13
Move 8 to the other side
Sign changes from +8 to -8
b+8-8=13-8
b=5
Answer : b=5
a. The table represents a proportional relationship
b. The constant of proportionality is 5/6
<h3 /><h3 /><h3>Proportional relationship:</h3>
Proportional relationship are relationship between variable where their ratios are equivalent. The variables in our case are total weight(pounds) and number of books.
Therefore, let's check if the table represent a proportional relationship.
let
total weight = x
number of book = y
k = constant of proportionality
y = kx
10 = k12
k = 10 / 12 = 5 / 6
y = kx
15 = 18k
k = 15 / 18
k = 5 / 6
y = kx
25 = 30k
k = 25 / 30
k = 5 / 6
y = kx
50 = k60
k = 50/60 = 5 / 6
The constant of proportionality is the same. Therefore, the table represents a proportional relationship
The constant of proportionality(k) is 5/6.
learn more on proportional relationship: brainly.com/question/19543047?referrer=searchResults
Answer:
Step-by-step explanation:
I know the answer it is the first one
I have gotten that question too and Igot it right so trust me
is undefined if the argument
is negative, so you first need to require that
We're not done yet, though, because
still doesn't exist when
, so we remove this from the domain and we're left with
, or in interval notation,
To find the range, consider the limits of the function as you approach either endpoint of the domain.
Since
is positive everywhere, the range is