The scatter plot below shows the relationship between drop height and speed of a roller
coaster
i
Roller Coasters
The linear equation that best models this data is y=0.216x + 32.575
Part A: The slope of the line is
0.216
and the y-intercept is

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Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

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