Maryland HSA Mathematics Reference Sheet

MATHEMATICS RUBRIC CUES FOR STUDENTS

Analysis

  • Consider what the question asks you to do.
    • What information is given in the problem?
    • What information do you need to solve the problem?
  • Think about what you would do to solve the problem.

Representation

  • Write an equation or inequality.
    • Define the variables. Let x = _______ and/or let y = ________ .
  • Create a graph, chart, or table.
    • Include titles, axes, labels, and scales.
  • Create a drawing or construction.

Application

  • Solve the problem.
  • Write the answers in the context of the problem.
  • Be sure you answer what is asked for in the problem.
  • Check to see if the answer is reasonable.

* Explanation

  • Write or describe the steps you used to solve the problem.

Justification

  • Use mathematics (definitions, theorems, reasoning, principles) to support your solution and/or process.
    • Write the mathematics concepts you used.
    • Tell why you solved the problem as you did.
    • Demonstrate that the solution is correct.

Complete as appropriate and required by the problem.

HSA ALGEBRA/DATA ANALYSIS FORMULAS

Equations of a Line

Standard Form:

Ax + By = C

where A and B are not both zero


Slope-Intercept Form:

y = mx + b or y = b + mx

where m = slope and b = y-intercept


Point-Slope Formula:

y − y1 = m(x − x1)

where m = slope, (x1,y1) = point on line
 

Slope Formula

Let (x1,y1) and (x2,y2) be two points in the plane.

equation
 

Revised September 2006

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