IXL - Evaluate a linear function from its graph: word problems (Algebra 1 practice)

This graph shows how a sapling's height depends on its age.

100

Height (inches)

Age (years)

Height of a sapling

How old was the sapling when it was 40 inches tall?

years

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Learn with an example

question

This graph shows how the total number of undershirts Garrett has in his wardrobe is related to the amount of money he spends on undershirts.

$10

$20

$30

$40

$50

$60

$70

$80

$90

$100

Number of undershirts

Amount of money

Undershirts in Garrett's wardrobe

In all, how much money does Garrett need to spend in order to have a total of 9 undershirts in his wardrobe?

$20

$50

$10

$40

solution

Find 9 undershirts on the y-axis. Move right until you intersect the graph.

$10

$20

$30

$40

$50

$60

$70

$80

$90

$100

Number of undershirts

Amount of money

Undershirts in Garrett's wardrobe

Now move down until you intersect the x-axis.

$10

$20

$30

$40

$50

$60

$70

$80

$90

$100

Number of undershirts

Amount of money

Undershirts in Garrett's wardrobe

You intersect the x-axis at $40. To have a total of 9 undershirts in his wardrobe, Garrett needs $40.

Looking for more? Try this:

$Confetti$

Excellent!

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Questions
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Time
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hr	min	sec
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M.6Find values using function graphs

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