IXL | Write an equation from a graph using a table

Complete the table and write the equation for the relationship shown in the graph.

x	y
4	4
5	5
6	6
9

ref_doc_title.

Learn with an example

question

Complete the table and write the equation for the relationship shown in the graph.

x	y
0	0
3	6
4
10	20

key idea

Each row in a table of

and

-values

represents an ordered pair.

An ordered pair

(

)

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

The
x
-coordinate
tells you the horizontal position.
The
y
-coordinate
tells you the vertical position.

solution

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

Each row of the table represents a point on the line in the graph. Use the graph to find the missing value in the table.

Look at the third row.

x	y
0	0
3	6
4	?
10	20

To find the

-value

when the

-value

is 4, find the point on the line with an

-coordinate

of 4.

The point

(

)

is on the line and has an

-coordinate

of 4. Its

-coordinate

is 8.

x	y
0	0
3	6
4	8
10	20

start of large bold text, Step 2: Write the equation., end of large bold text

For each row of the table, the number in the

column is a multiple of the number in the

column.

x	y
0	0 2 = 0
3	3 2 = 6
4	4 2 = 8
10	10 2 = 20

In each row of the table, the number in the

column is 2 times the number in the

column. You can write the equation as:

Looking for more? Try this:

$Confetti$

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Work it out

Not feeling ready yet? These can help:

X.7Graph a two-variable equation

X.5Write a two-variable equation

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