Question

Well someone help me on here before with this answer, but i would like you to explain it for me if that all right with you? @DanJS

Answer 1

The Mathalot Company makes and sells textbooks. They have one linear function that represents the cost of producing textbooks and another linear function that models how much income they get from those textbooks. Describe the key features that would determine if these linear functions ever intersected.

Answer 2

ok

Answer 3

sorry was finishing another problem

Answer 4

Alright so you have a function that gives you `cost` of producing textbooks

and another function that gives you `income`

Answer 5

what happens when cost equals income ?

Answer 6

Remember the whole point of the last problem?

Answer 7

the 'breaking even' point

Answer 8

C(x) = I(x)

Answer 9

yea

Answer 10

the slopes of those lines can not be the same

Answer 11

they cant sell the things for the same price they are paying to produce them

Answer 12

what happens when the sales money you get equals the cost of producing books ?

Answer 13

@strawberrylove2016

Answer 14

Hint: it was the question, in another from, from the last problem.

Answer 15

Its parallel, meaning its infinite. right?

Answer 16

meaning, never 'break even' remember last prob, we had to derive an equation where Susie begins to make a profit?? that would be where the lines cross

Answer 17

If the lines do not cross, no profit will be made

Answer 18

See at # books = 0, you start at your initial investment,

Answer 19

the Cost line

Answer 20

yea

Answer 21

Your income is zero when no books are made, Crosses at the origin (o,o)

Answer 22

So the KEY feature that will decide if the lines cross are the SLOPES.

Answer 23

The slope of the INCOME line must be GREATER than the slope of the COST line

Answer 24

The SLOPE of the income line is the price per book

Answer 25

OMG i knew this!!! Why can't i put it into word's!!!!!

Answer 26

Then when you get past that point where they cross, the 'breaking even' point,
The difference in the two lines $$ value is the PROFIT. see where i have it marked??