Why does this plot not work? Thank's for every help!

x = linspace(0.5,8.7,870)

syms y;

solve(4000 == (y/6.5)*(8.7-x),y)

plot(x,y)

Answer 1

[Roger Stafford]

It would be better to first solve the equation for y symbolically and then produce a vector of y values:

x = linspace(0.5,8.7,870);
y = 6.5*4000./((8.7-x); % <-- The symbolic solution
plot(x,y)