Equation for logarithmic linear equation

Hi

Need some help to create an equation for the 6 cases of linear graph I attached the mathcad prime for your reference.

I cannot make the graph straight using this formula ( y= mx+b) because x should be in logarithmic distance

Physical Mathematics

Best answer by MJG

ldante,

The equation is y=m*log(x)+b

For x1 & y1, this can be found to be y1=-0.52532*log(x1)+3.17596.

23-Emerald IV

Hi Lex,

It's not completely clear what you want...

What you have is y=m*log(x)+b.

If you solve m and b in: y1=m*x1+b

you get m=-0.01974 and b=3.21776.

You can do the same for the other sets.

Does this help?
Success!
Luc

1-Visitor

I think OP is looking for your equation y=m*log(x)+b.

If you solve for m & b in y1=m*log(x1)+b

you get m=-0.52532 and b=3.17596

Author

11-Garnet

Yes .. I need an equation . I am using logarithmic scaling in x axis . Thank you in advance 🙂

Sign up