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Tables, formulas and graphs

Mathematics — first biennium · Lesson

Cartesian plane · Functions

Tables, formulas and graphs

A table, a formula and a graph describe the same function. A table row (x,y) is also a point on the graph.

Key idea
Formula matematica
Similar example
Formula matematica
What you need to know before the exercises

In this lesson: Move between formulas, tables and graph points for simple functions.

How to proceed: Substitute x into the formula. The value obtained is y and becomes the second coordinate of the point: do not swap the order.

You can already assume: Functions, coordinates and substitution.

Try it now

Use the formula and the known points to complete a new row of the function.

Guided

Completed exercises: 0/5 · Correct on first attempt: 0

How to reason

Substitute x into the formula. The value obtained is y and becomes the second coordinate of the point: do not swap the order.

Given data: For x=3, the y-value is missing.

Formula matematica
xy
04
12
20
3?
Your competency map

What you need to know for Tables, formulas and graphs

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Current topic Strong skill Review due Needs reinforcement To be mastered Optional support

Relationships: solid line = required · dashed line = recommended · dotted line = reinforcement.

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