Round 87671.5613658 to the nearest thousand

Find the multiplicative inverse of 8-12i

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2