Question

Every line can be written in the form Ax+By=C but not in the form y=mx+b?

Answer 1

The expression Ax + By = C

is show the expression of line, while the expression y= mx +b is the slope intercept form of the line.

to calculate the slope of the line we use the y = mx + b expression

and for the general equation of line we used Ax + By = C.