A detective collects carpet fibers from a suspect’s home. The fibers are a:

Among the common characteristics of an arsonist is a person who:

The retention factor value is an older form of paper chromatography.

Before an investigator collects additional samples of a reddish liquid at a crime scene, he or she will check the substance using a:

A fire in a restaurant has more than one point of origin. This probably indicates that the fire was:

To examine the marks left by a gun’s barrel on two sample bullets, a forensic scientist might use a:

An investigator collects a blood sample but does not know if it is from a human or an animal. To make a determination, the forensic lab completes a:

The first step in investigating a crime is to:

Plot the three points , , and on the coordinate plane. State whether the three points you plotted appear to be collinear (on the same line).  Remember to show your work by drawing the graph and plotting the points.Be sure to draw out the graph and plot the three points.   

Find the x-intercept  and the y-intercept  of the equation WITHOUT graphing. Remember to show you work! TIP: Remember what intercepts represent x-intercept: This is where the graph crosses the x-axis.  y-intercept: This is where the graph crosses the y-axis.