Slope and Parallelism in Dilated Lines
Investigate how dilations preserve slope and maintain parallelism between lines. Practice determining the slopes and equations of dilated lines.
Questions
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MultiChoice
When a line not passing through the center of dilation is dilated, the resulting line is:
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MultiChoice
When a line passing through the center of dilation is dilated, the resulting line is:
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MultiChoice
A line has slope m = 2. After dilation centered at origin with scale factor k = 2, what is the slope of the image line?
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MultiChoice
What is the relationship between the slope of a line segment and the slope of its dilated image?
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MultiChoice
Line L has equation y = 3x + 4. After dilation centered at origin with k = 3, what is equation of L'?
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MultiChoice
Line y = -2x + 6 is dilated centered at origin with k = 0.5. What is the equation of the new line?
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MultiChoice
Segment AB has slope -3/4. After dilation with scale factor k = 5, what is the slope of A'B'?
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MultiChoice
When line y = mx + b is dilated with center (0,0) and scale factor k, what happens to the y-intercept b?
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MultiChoice
Line y = 5x passes through origin. What is its equation after dilation centered at origin with k = 2?
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MultiChoice
A horizontal line segment has slope 0. What is the slope of its image after dilation?
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MultiChoice
Vertical line x = 4 is dilated centered at origin with scale factor k = 2. What is equation of the image line?
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MultiChoice
Line y = 2x + 3 is dilated centered at origin into y = 2x + 12. What was the scale factor k?