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Unit 3, Lesson 3
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PERIOD
3.4 Graphing a Line
Make a sketch of a linear relationship with slope of 3 that is not a proportional
relationship. Show how you know that the slope is 3. Write an equation for the line.

User Lmcadory
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Answer:To sketch a linear relationship with a slope of 3 that is not proportional, you can choose any two points on the line and connect them. Here's an example:

Let's choose the points (0, 0) and (1, 3). These points are not proportional because the y-coordinate is not three times the x-coordinate.

To show that the slope is 3, we can use the slope formula:

slope = (change in y) / (change in x)

Let's calculate the slope using the two points we chose:

slope = (3 - 0) / (1 - 0)

= 3 / 1

= 3

The slope is 3, as expected.

To write an equation for the line, we can use the point-slope form of a linear equation:

y - y1 = m(x - x1)

Using the point (0, 0) and the slope of 3, we have:

y - 0 = 3(x - 0)

Simplifying the equation gives us:

y = 3x

So, the equation for the line is y = 3x.

By sketching the line connecting the two points and using the equation y = 3x, you can visually see the linear relationship with a slope of 3 that is not proportional.

Explanation:

User Ishan Madhusanka
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