Students will practice identifying parallel and perpendicular lines on the coordinate plane with this set of 24 task cards.  This includes: Determining whether lines are parallel, perpendicular, or neither given ordered pairs. Determining whether lines are parallel, perpendicular, or neither given the equations of the lines. Equations are given in both slope-intercept and standard form. Vertical and horizontal lines included. Writing an equation parallel or perpendicular to a given equation passing through a certain point. A recording worksheet is included for students to record their answers. They can check their answers by scanning the QR code on each card. Connection to the internet is not required to scan the code. However, a QR scanner app is required on the device. There are several free apps available to download. If you haven't used QR codes in your classroom yet, I highly recommend them! Students love using the technology, and the self-checking makes it easier on the teacher!  A non-QR code version is included as well. This resource is included in the following bundle(s): Geometry Curriculum (with Activities) Geometry Activities Bundle LICENSING TERMS: This purchase includes a license for one teacher only for personal use in their classroom. Licenses are non-transferable, meaning they can not be passed from one teacher to another. No part of this resource is to be shared with colleagues or used by an entire grade level, school, or district without purchasing the proper number of licenses. If you are a coach, principal, or district interested in transferable licenses to accommodate yearly staff changes, please contact me for a quote at [email protected]. COPYRIGHT TERMS: This resource may not be uploaded to the internet in any form, including classroom/personal websites or network drives, unless the site is password protected and can only be accessed by students.