Systems of Equations & Inequalities, Polynomials & Polynomial Functions

Name: ______________________________ Student ID: _______________________

Instructions: Print this “Take Home Test”, and solve all problems using Blank Papers. Please show your work completely, and post them in the discussion forum on Canvas befoer the due date.

  1. If the system of linear equations results in 2 parallel lines, the system is ________, if the system of linear equations results in 2 intersecting lines, the system is ________, and if the system of linear equations results in a single line, the system is ________
  2. Solve the system of equations.  

 

 

a)      Problem 2 Practice 2

 

 

b)     

  1. Graph the solution to the system of inequalities. Indicate the boundary lines and the test points.  

 

 

 

  1. A chemistry lab assistant wants to prepare 10 liters of 48% acid solution.  In stock he has 80% and 40% acid solutions.  How many liters of each in stock solution should he mix to prepare a 10-liter mixture? (Set up a system of equations and solve.)

 

 

  1. A plane can travel 800 miles per hour with the wind and 720 miles per hour against the wind. Find the speed of the wind and the speed of the plane in still air. (Set up a system of equations and solve.)

 

 

  1. Admission tickets to the Braden River Little League all-star game cost $4.00 for adults and $1.50 for children.  A total of 225 tickets were sold and a total of $500 was collected from ticket sales.  How many adult tickets and how many children’s tickets were sold? (Set up a system of equations and solve.)

 

 

  1. Simplify.

a)        

b)        

c)     

 

 

  1. Simplify and write the answer with positive exponents only.

 

a)     

b)             

c)       

d)     

  1. What is the degree of each polynomial?

a)     

b)     

  1. Factor completely.       

a)     

b)     

c)     

d)     

e)     

f)       

g)      (By Grouping)       

h)       (By Substitution)

  1. Solve by factoring.       

a)     

b)       

  1. Subtract ( ) from ( ).

 

  1. Multiply.          

a)     

b)     

c)     

 

  1. Find all the x-intercepts of the graph of the equation:

 

 

  1. One leg of a right triangle is 4cm less than the other leg. The area of the triangle is 70 sq cm. Determine the length of each leg. 

 

 

 

 

  1. Divide: a)         b)