Topics
5. Linear Equations, Proportional Relationships & Lines
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United States of AmericaNC
Grade 8

5.09 Connecting descriptions, tables, equations, and graphs of lines

Lesson
Practice

Interactive practice questions

Write down the equation of a line which has a slope of $-4$−4 and crosses the $y$y-axis at $-4$−4.

Give your answer in slope-intercept form.

Easy
1min

Write down the equation of a line whose slope is $-3$−3 and crosses the $y$y-axis at $-8$−8. Express in slope-intercept form.

Easy
< 1min

Write down the equation of the line in slope-intercept form, given that its slope is $-9$−9 and its $y$y intercept is $2$2.

Easy
< 1min

Consider the table of values below.

Easy
< 1min
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Outcomes

NC.8.F.4

Analyze functions that model linear relationships. • Understand that a linear relationship can be generalized by y = mx + b. • Write an equation in slope-intercept form to model a linear relationship by determining the rate of change and the initial value, given at least two (x, y) values or a graph. • Construct a graph of a linear relationship given an equation in slope-intercept form. • Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of the slope and y-intercept of its graph or a table of values.

NC.8.F.5

Qualitatively analyze the functional relationship between two quantities. • Analyze a graph determining where the function is increasing or decreasing; linear or non-linear. • Sketch a graph that exhibits the qualitative features of a real-world function.

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