Consider the following pair of equations: y = x + 4 y = –2x – 2 explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form.

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Find the value of x for which the lines are parallel.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r