Question

Choose the correct description of the graph of the inequality −4x < 20.

a. Open circle on 5, shading to the left.
b. Closed circle on 5, shading to the left.
c. Open circle on −5, shading to the right.
d. Closed circle on −5, shading to the right.

please someone teach me how

Answer 1

when dividing or multiplying by a negative quantity enequality changes i.e.,< to> and > to <

Answer 2

whats the difference between \[\le \ge \] and <>