Weegy: A mirage occurs when an object appears displaced from its true position. Atmospheric mirages are created when light is bent, or refracted, as it travels through layers of air with differing densities. [ Changes in air density are usually caused by changes in air temperature ] (More)

Weegy: With that information, you know that two points on the line at (-5,0) and (0,-2).
Now you find the slope between those two points:
(-5-0)/(0-(-2)) = -5/2... Since now you know the slope, the equation would be y=-5/2x-2
User: Find the common difference of the sequence shown.
, , , , ... User: If f(x) = 3x2 - x, find f(-2). Weegy: f(x) = 3 * 2 + -1x
Multiply f * x
fx = 3 * 2 + -1x
Multiply 3 * 2
fx = 6 + -1x
Solving
fx = 6 + ... (More)