LINEAR ALGEBRA AND OPTIMIZATION
FOR MACHINE LEARNING UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS COMPLETE STUDY GUIDE FULL
SOLUTION
●● What should you do before taking the sample exam?
Answer: Take the first sample exam with no notes in a classroom-like
setting.
●● How should you review after taking the sample exam?
Answer: Grade yourself, review missed problems, and clarify any
questions.
●● What is the equation of the line 2x - 5y = -10?
Answer: Find the x- and y-intercepts.
●● What is the slope of the line that passes through (2, 6) with slope m =
-5?
Answer: Draw the line.
, ●● How do you find an equation of a line with slope m = -2 through the
point (-4, 7)?
Answer: Use the point-slope form.
●● What is the regression equation for absences vs. final grade?
Answer: y = 100 - 14x.
●● What does it mean if (1, -2) is a solution of the system?
Answer: It satisfies both equations in the system.
●● What are the possible graphical results from solving a system of two
linear equations?
Answer: One solution, no solution, or infinitely many solutions.
●● What relationship between a, b, c, and d results in no solution for the
linear system?
Answer: The lines must be parallel.
●● What is the solution of the system x - y = -1 and 3x - 2y = 0?
Answer: Solve using any method.
●● What is the price-supply equation for widgets given the supply and
demand?
FOR MACHINE LEARNING UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS COMPLETE STUDY GUIDE FULL
SOLUTION
●● What should you do before taking the sample exam?
Answer: Take the first sample exam with no notes in a classroom-like
setting.
●● How should you review after taking the sample exam?
Answer: Grade yourself, review missed problems, and clarify any
questions.
●● What is the equation of the line 2x - 5y = -10?
Answer: Find the x- and y-intercepts.
●● What is the slope of the line that passes through (2, 6) with slope m =
-5?
Answer: Draw the line.
, ●● How do you find an equation of a line with slope m = -2 through the
point (-4, 7)?
Answer: Use the point-slope form.
●● What is the regression equation for absences vs. final grade?
Answer: y = 100 - 14x.
●● What does it mean if (1, -2) is a solution of the system?
Answer: It satisfies both equations in the system.
●● What are the possible graphical results from solving a system of two
linear equations?
Answer: One solution, no solution, or infinitely many solutions.
●● What relationship between a, b, c, and d results in no solution for the
linear system?
Answer: The lines must be parallel.
●● What is the solution of the system x - y = -1 and 3x - 2y = 0?
Answer: Solve using any method.
●● What is the price-supply equation for widgets given the supply and
demand?
