IXL | Identify the graph of an equation

This equation describes a relationship between x and

–

Complete the table and select the graph that shows this relationship.

x	y
2	0
3
4	2
5

ref_doc_title.

Learn with an example

question

This equation describes a relationship between x and

–

Complete the table and select the graph that shows this relationship.

x	y
2	1
3
4
5	4

key idea

Each row in a table of

and

y-values

represents an ordered pair.

An ordered pair

(x,

tells you the location of a point on the coordinate plane.

The
x-coordinate

(x-value)
tells you the horizontal position.
The
y-coordinate

(y-value)
tells you the vertical position.

solution

start of large bold text, Step 1: Complete the table., end of large bold text

There are two missing

y-values

in the table.

x	y
2	1
3	?
4	?
5	4

To find the missing

y-values,

plug the

x-values

from the table into the equation.

Plug in x = 3.

–

Plug in x = 4.

–

Write the missing

y-values

in the table.

x	y
2	1
3	2
4	3
5	4

start of large bold text, Step 2: Draw the graph., end of large bold text

The graph that shows this relationship must have ordered pairs that satisfy the equation:

–

Each row in the table of

and

y-values

represents one of these ordered pairs. Write the ordered pairs in a new column.

x	y	(x, y)
2	1	(2, 1)
3	2	(3, 2)
4	3	(4, 3)
5	4	(5, 4)

Plot a point for each ordered pair.

Now draw a line through these points. The line represents all ordered pairs that satisfy the equation.

Looking for more? Try this:

$Confetti$

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Teacher tools

Work it out

Not feeling ready yet? These can help:

R.3Graph points on a coordinate plane

X.4Complete a table for a two-variable relationship

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