In a research experiment, the popluation of a colony of bacteria doubles every hour. The population, f(x), of the colony after x hours can be modeled by the function
f(x)=252^2. What values for the domain are reasonable in the given context?

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0