Comparison of positive proportion function, inverse proportion function and linear function

Comparison of positive proportion function, inverse proportion function and linear function

Let the proportional function be y = KX (K ≠ 0) (x is any real number, i.e. x ∈ R). When k > 0, y follows x ↑ and ↑, passing through 1.3 quadrants. When k < 0, y follows x ↑ and ↓, passing through 2,4 quadrants. Let the primary function be y = KX + B (K ≠ 0, B ≠ 0) (x ∈ R). ① when k > 0, y follows x ↑ and ↑ B > 0, in 1,2,3 quadrants. When the intersection Y axis is in the positive half axis B < 0