The area of the triangle formed by x− and y− intercepts of the parabola y=0. 5(x−3)(x+k) is equal to 1. 5 square units. Find all possible values of k.

Which source would provide the most bias-free information about smoking and increased health risks? a) a website created by heart disease patients b) a research study conducted by the mayo clinic eliminate c) a public service message sponsored by tobacco companies d) an online question forum conducted by attorneys for cardiac specialists