1. This question introduces you to the use of Word for producing good laboratory documents.

a. You will begin this laboratory exercise by downloading an excel graph from the web (note the previous "graph from the web" gives you the link that you need). This graph has no labels and the lines are not identified. Generate a title for your graph, label the x and y-axes appropriately, adjust the scale so that the domain (x) and range (y) both go from -4 to 4, and expand the graph to a square. Copy this graph into your laboratory document.

The two lines are given by the formulae

Use Excel's labels to identify each line with its equation. Also, label the coordinates of the point of intersection on the graph. Write a short paragraph detailing how you found your point of intersection. Are these lines perpendicular? Explain your answer.

b. Consider the quadratic function

Use Equation Editor (Microsoft Equation) to write this quadratic equation with full-sized fractions (i.e., where the numerator and the denominator are delimited by a horizontal bar). Also, write this function in full factored form and find the zeroes of this function.