Concept:The gradient of a line measures its steepness between two points.Explanation:Use the gradient formula: gradient=x2−x1y2−y1.Let (x1,y1)=(−2,0) and (x2,y2)=(0,−4).Substitute the values:0−(−2)−4−0=2−4=−2The negative sign shows the line slopes downward.Answer:The gradient is −2.