Which conic section is represented by the following equation? –5x2 + 10xy – 5y2 + 2x – y + 4 = 0

circle
ellipse
parabola
hyperbola

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

How do you determine whether a relationship represented as as graph is linear or nonlinear

Consider the function f(x)=-5x+3 what is f(-2)