$Functions and graphs: fill in the blanks: fill-in-the-blank worksheet for Grade 9, page 1 preview$

Fill-in-the-blank worksheet · Mathematics

Functions and graphs: fill in the blanks · Grade 9

Read 8 sentences about functions and graphs and write the missing word in each, using the word bank. Practices reading for meaning and topic vocabulary.

Grade 9 · ages 14 to 15
Medium
15 to 20 minutes
1 page
Free

Goes with the game Function Factory.

The answer key is a separate page for grown-ups. Sign in to download it.

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The word bank and sentences

Directions: Read each sentence. Choose the best word from the word bank and write it on the line.

Word bank: cross out each word as you use it
function · zero · one · positive · origin · parabola · slope rate
1 A horizontal line has a slope of ____.
2 In y = 3x + 2, the · is 3.
3 A function gives exactly · output for each input.
4 The graph of a quadratic function is a ____.
5 A line that rises from left to right has a · slope.
6 The point where both axes cross is the ____.
7 A linear function changes at a constant ____.
8 The vertical line test checks whether a graph shows a ____.
Your turn · Write a sentence of your own that uses a word from the word bank.

What your child practices

Your child practices reading for meaning and topic vocabulary. The skill is “Linear and nonlinear functions”: tell linear from nonlinear rules using tables and predict outputs, including negative inputs.

Grades and ages: Grade 9, ages 14 to 15
Time: About 15 to 20 minutes
Subject: Mathematics
Level: Medium for Grade 9
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Try the first question together so the format is clear. Then let your child work through the rest, showing their thinking on the page. It is pitched at the expected level for Grade 9, for practice after the skill has been taught.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Read each sentence aloud with a hum for the blank, then try each word bank word in it.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.