In order to determine if the values of the table present a certain proportionality, it is necessary to calculate the quotient in between al pairs of x and y values. If the quotient is the same for all values, then, the relation is proportional.
3/2 = 1.5
7.5/5 = 1.5
15/10 = 1.5
as you can notice, all quotients are the same, hence, the table do represent a proportional relationship.
answer:
yes
Answer:
Vertical lines
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let the regresssion line be linear because of a constant amount of money coming in. Let y be the total amount of money in the box and x the weeks of adding to the box:
We know that he puts $20 in the box from his birthday and $4 every week for x weeks. Therefore the total amount of money will be:
That is the formula to find the volume of a sphere. It's best to just memorize it as it is hard to come up with. The (4/3) is a constant (it is always that fraction). Pi is also a constant but it is a never ending decimal number so they use the Greek number pi to represent it. Most schools use 3.14 to equal pi but some just use 3 so be sure to check with your teacher. The r here is referring to the radius of the sphere which is the measurement from the center out to the edge. To find the volume you need to multiply (4/3) times Pi times (the radius squared)
Answer:
It's B
Step-by-step explanation:
B) Because Limit as x approaches negative 1 f(x) = –4 and f(–1) = –4, it follows that Limit as x approaches negative 1 f(x)= f(–1). Therefore, the function is continuous at x = –1