Answer:
4) is a function 5) is not a function
Step-by-step explanation:
4) This is a function because even tho some numbers in the domain have the same y value that doesnt mean the x values overlap. THink of it graphically or draw points do the points overlap? It shouldn't unlike question 5!
5) This is NOT a function. Why??? This is because now all numbers except 4 have more than one y value for one x value
for example: 1 has -1 and 3
That would overlap!!
Answer:
L = 55 in, W = 20 in
Step-by-step explanation:
Hi there!
First we have to set up an equation for the length, which can be written as 3x - 5.
The formula for perimeter of a rectangle is 2l + 2w = p, so we can plug in some values here.
l = 3x - 5
w = x
Now we just have to solve!
When we combine like terms and add ten to both sides, we are left with
, which means x = 20
Using this, that means the width is 20
We can find the perimeter by plugging 20 in for x.
This means the length is 55.
Answer:
it can be any number from -15 to 8
Step-by-step explanation:
I think the answer is 3/5 if you simplify