Which relation is a function? from the graphs

Bottom right

Step-by-step explanation:

For a set of numbers to be function the independent variable must have only one value in the dependent variable.

You can do it with graphs or tables.

Here you can analyze each graph.

Top Left:

for x = -1, y = -1 and also y = 3, then it isnt a function because there are 2 values in y for 1 value in x

Top Right:

for x = 0, y = -1 and also y = 2, it isnt a function

Bottom Left:

for x = -2, y= -2 and also = 1, for x = 2, y = -2 and also y = 0, it isnt a function

Bottom right:

Each x has only 1 y. It is a function

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get

yeah i know the problem you need. i am taking it right now. the answer is step 3

~mickey