9th Grade Line Graphs Quizzes, Questions & Answers

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9th Grade

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Polynomial Basics Medians And Altitudes Venn Diagram Use Euclidean Algorithm Permutation Basics Function Basics Composite Solids Polynomial Identities Modular Inverses Interquartile Range Fraction Basics Modular Multiplication Real World Use Mode Pythagorean Triples

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Section 6.2 - Lines Of Best Fit

Explore linear relationships in various contexts using scatter plots to determine lines of best fit, predict values, and analyze data trends.

Questions: 10 | Attempts: 1045 | Last updated: Aug 18, 2025

Sample Question 1
This scatter plot shows the annual profits for the past ten years for Ellen's business designing greeting cards. Use the graph to estimate the profit in the 9th year.

$12 500

$13 200

$13 500

$14 000

Sample Question 2
This scatter plot shows daily low temperature s in Banff National Park for the first ten days of July. What is the equation for the line of best fit?

Y = x + 4

Y = 7/3x + 2/3

Y = 7/3x + 16/3

Y = x + 2

Section 6.5 - Describing Situations From Graphs

Describing situations from graphs requires analytic skills and is one of the many components of mathematics. It might not be as simple or complex as you think so just try it out and see for yourself. Enjoy

Questions: 10 | Attempts: 608 | Last updated: Aug 18, 2025

Sample Question 1
Which story matches the graph?

A car pulls onto the highway and travels at a steady speed until it pulls into a gas station to refill

Olivia throws a rock off a cliff into the ocean below

Francine hits a home run

A hang glider flies off a cliff, does one full turn and lands where he began

Sample Question 2
Which shows a non-linear relationship?

Graph A

Graph B

Graph C

Graph D