In addition, the MATH 246 requirement may be fulfilled by MATH 414 instead. If MATH 414 is used to fulfill the MATH 246 requirement, it may also be used as one of the upper level math requirements in (3)(g)(ii) below.
Smart keys are part of a computerized system that uses sensors and microchips to automatically unlock the doors and start the vehicle without the use of a key [source: Toyota]. Smart keys are often shaped more like plastic cards than actual keys.
Rather than a smart key sending out the same frequency signal over and over, which would affect all the makes and models utilizing the same key, not to mention make it easier for tech-savvy thieves to steal cars, smart keys broadcast a different encrypted signal every time you unlock a door or remotely pop the trunk.