Our Sun is currently in which stage of its life cycle?  

Scenario: You discover two different Nebulae. Nebula X contains enough gas to form a star the size of our Sun. Nebula Y contains ten times that amount of gas and dust. Question: Predict which nebula will likely result in a Black Hole at the end of its life cycle and explain why. (2 Marks)

Solve the equation (x^2 + 1)y′ + xy = x.

Solve the equation x^2y′ = 1 − x^2 + y^2 − x^2y^2,     y(1) = 0.You may leave your answer as an implicit solution.

Show all of your work to find the x- and y- intercepts of the line:-6x+4y=15x- intercept: ________y-intercept: _________

Consider the function: f(x)=-2x-2+3a) What is the “parent” function for this?b) Describe the transformations that happen to the parent function to graph this function. In other words, is there a horizontal translation? Is there a vertical stretch or shrink (which one, and by how much?), is there a reflection or vertical translation?c) List at least 4 points on this graph, including the left-most point and three others. Graphing calculators are not allowed.

Sofia smokes cigarettes despite knowing the health risks. This behavior best represents:

Smoking increases the risk of all of the following EXCEPT:

Why is chronic stress more dangerous than short-term stress?

Jamal experiences chronic stress and frequently gets sick. Which system is most likely being weakened by prolonged stress?