Access Point #: MAFS.8.EE.2.AP.6a (Archived Access Point)


This document was generated on CPALMS - www.cpalms.org



Define y = mx by identifying the coordinates (x, y) of a point and rise/run (m) for a linear equation plotted on a coordinate plane that passes through the origin.

Clarifications:

Essential Understandings

Concrete:

  • Identify parts of a line graph.
  • Graph a series of coordinates on a coordinate plane.
  • Identify the two coordinates of a point on a line graph.
  • Examine the values of the x variable or y variable to look for a pattern.
  • Count the distance up/down between two points on the coordinate plane (rise).
  • Count the distance to the right, between two points on the coordinate plane (run).
  • Use a template (rise/run) to determine the slope.
  • Recognize a positive or negative relationship between two points.
Representation:
  • Understand the following concepts, vocabulary, and symbols: coordinates, ordered pairs (x, y), intercept, grid, axis, point, proportion, line, slope.
  • Graph a series of coordinates on a graph.
  • Identify given coordinates (x, y) as a point on a graph.
  • Identify the intercept(s) on a graph.
  • Identify the slope using the equation.
  • Identify the slope using the graph.
  • Use the format to write an equation for a line.

Number: MAFS.8.EE.2.AP.6a Category: Access Points
Date Adopted or Revised: 07/14 Cluster: Understand the connections between proportional relationships, lines, and linear equations. (Major Cluster)

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Related Standards

Name Description
MAFS.8.EE.2.6: Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.



Related Courses

Name Description
1205050: M/J Accelerated Mathematics Grade 7
1205070: M/J Grade 8 Pre-Algebra
1204000: M/J Foundational Skills in Mathematics 6-8
7812030: Access M/J Grade 8 Pre-Algebra