Definition of junior middle school function: For two variables X and Y, for each definite value of X, Y has a unique definite value corresponding to it, so we say that X is an independent variable and Y is a function of X. If x=a is 0 and y=b, then B is called the function value when the independent variable value is A..

The relationship between k and b you mentioned refers to a linear function, and the general form is y=kx+b(k is not equal to 0).

When k>0, b>0, the function image passes through quadrant 123.

When k>0, b<0, the function image passes through quadrant 134.

When k < 0, b>0, the function image passes through quadrant 124.

When k < 0, b<0, the function image passes through 234 quadrants.

If there is no problem, please adopt it. thank you