Question

Suppose that the cost C(x), in dollars, of producing x compact discs is given by C(x)=0.5x+500.

A) graph
B) Compute C(150)
C)Compute the cost of the next compact disc.

Answer 1

no

Answer 2

I am just not sure how to to put this into the calc to do the graph

Answer 3

what kind of calc do you have - i have ti 84 plus

Answer 4

me too

Answer 5

on top line (directly below screen) hit Y=

Answer 6

OK

Answer 7

enter in 0.5x +500
then hit graph key

Answer 8

i went to website for some cool downloads and manual

Answer 9

OK I need to do that

Answer 10

cool stuff works well with chemistry also :)

Answer 11

what site did you use

Answer 12

it is not graphing anything

Answer 13

http://education.ti.com/calculators/downloads/US/Guidebooks/Detail?id=6125

Answer 14

These are the x and y intercept of the equation y=0.5x +500
y=500,1x=-1000

Answer 15

here is another good calculator site http://www.mathway.com

Answer 16

hit zoom

Answer 17

how did you get -1000

Answer 18

that worked

Answer 19

set y = 0 and solve for x

Answer 20

So I divide 500 by 0.5

Answer 21

To find the x-intercept substitute in 0 for y and solve for x.

(0)=0.5x+500

Since x is on the right-hand side of the equation switch the sides so it is on the left-hand side of the equation

0.5x+500=0

Since 500 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 500 from both sides.

0.5x=-500


Divide each term in the equation by 0.5.

0.5x/0.5=-500/0.5

Cancel the common factor of 0.5

1x=-500/0.5

Divide -500 by 0.5 to get -1000.

1x=-1000

To find the y-intercept, substitute in 0 for x and solve for y.

y=0.5(0)+500

Multiply 0.5 by each term, inside the parentheses

y=0+500


Solve the equation

y=500

Answer 22

this will give you the answer I gave you above

These are the x and y intercept of the equation y=0.5x +500
y=500,1x=-1000

Answer 23

This is what I got. I just did it different. Is there other ways to do this?

Answer 24

Thank you for your time.

Answer 25

not really sure if there are other ways but you are welcome for the time

Answer 26

For the next part do I just plug the C(150) the 150 in place of the x?

Answer 27

yes 150 in place of x