Let's think about the first problem.Is it possible for a and b to be found if only points (x1,y1) and (x2,y2) are known?
y = a log(x) + b
x = 10( (y - b) / a )
xa = ( 10y / 10b )
I can't see a way to separate a and b from the variables.
Thanks.
I'm not sure what you mean by "separating a and b from the variables"...? You've been given two points (that is, two values for each of x and y) and an equation that relates x and y. (The second and third equations in your post are just rearrangements of the first equation.) You've been asked to plug the two data points into the equation (in place of x and y), giving you two equations in two unknowns (a and b). Then you're asked to solve that system of equations.Is it possible for a and b to be found if only points (x1,y1) and (x2,y2) are known?
y = a log(x) + b
x = 10( (y - b) / a )
xa = ( 10y / 10b )
I can't see a way to separate a and b from the variables.