Problem preview
MF.GR.7 Challenge MF-046-A12-V01

Match and compare words, tables, graphs, and simple equations that represent the same relationship.

Find every equivalent representation in a mixed set

Problem

Identify \(\text{every}~\text{representation}\) equivalent to \(y~=~3x~+~2\).

A. A table with \(x\text{-}\text{values}~0,~1,~2,~3~\text{and}~y\text{-}\text{values}~2,~5,~8,~11\)
B. The rule: \(\text{start}~\text{at}~3~\text{and}~\text{add}~2~\text{for}~\text{each}~1~\text{increase}~\text{in}~x\)
C. The points \((1,~5),~(2,~8),~(4,~14)\)
D. A table with \(x\text{-}\text{values}~0,~1,~2,~3~\text{and}~y\text{-}\text{values}~3,~5,~7,~9\)
E. The equation \(y~=~2x~+~3\)
F. The description: the output is \(2~\text{more}~\text{than}~3~\text{times}~\text{the}~\text{input}\)

Big Picture

What this problem is really about

Use the target equation as a two-feature fingerprint: its zero-input value and its output change per one input unit. Translate every table, point set, rule, and verbal statement into that common description or test shared inputs directly. A representation must preserve both features; merely containing the same two numbers in reversed roles is not enough.

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Four variants of this problem type
Curriculum context
Standard
MF.GR.7
Category
Representations
Domain
Multiple Representations
Objective
Match and compare words, tables, graphs, and simple equations that represent the same relationship.
Problem type
Find every equivalent representation in a mixed set