paulmcquad

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These are questions asked by paulmcquad


 

Function Misrepresented

y^2-x = 1"(->)"[[y = (x+1)^(1/2)], [y = -(x+1)^(1/2)]]NULL

NULL

 

Expected output for y

 

y = `&+-`(sqrt(1+x))

 

Yes it's the same meaning but i would like less to look at.


 

Download funct_misrep.mw

I'm trying to be able to add bullet points to this Plot as well as where they cross. Download provided below. Thanks in Advance.

Example 7: Equations of Perpendicular Lines

 

NULLy = -(3/2)*x+2

 

2*x-3*y = 5; "_noterminate"

2, -1; "_noterminate"and m = 2/3; "_noterminate"

y = -5/3+(2/3)*x

(1)

 

``


Download mp.mw

I'm reading this book : Algebra and Trigonometry - Real Mathematics, Real People, 7th Edition

Chapter 1 Functions and Their Graphs, Example 7, Monthly Wage , Page 80.

I'm trying to plot for a monthly wage.

The inital equation is:

y = 2000 + 0.1*x

Then other changes:

a. Sales are $1480 in August. What are your wages for that month?
b. You receive $2225 for September. What are your sales for that month?

I'm lost. Which is better Numerical Solution or Graphical Solution?

Thanks in Advance,

Paul

 

Hi,

I'm trying to plot:

y = x(x^4 - 10*x^2 + 39)/30

I keep getting a what looks like a straight line. it should be a curved line.

I got it to work on :

y = x(x^4 - 10*x^2 + 39)/30

https://www.mathway.com/Algebra

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