Answer

Question 1 (5 points) What are the coordinates for the intersection of these two lines? (1) and (2)

Rewrite equations in y = mx + b format. (1) (2) Solve for x and then y: Multiply thru by 10 (common denominator) So So coordinates are (5.2727.., -2.3636..)

Graphics check

Question 2 (5 points) Do either (a) or (b)

For the quadratic function

(a) Find exact values for the zeros of the function or (b) Find the coordinates of the Vertex

For zeros either factor or use quadratic equation: 0 = (x - 5)(2x + 1) or Ans. (a) is x = 5 and x = - ½

For coodinates of vertex use Ans. (b) is