Line/Curve of Best Fit, Slope, Direct & Inverse

Find the best fitting quadratic model for the data given.

• y = 1.2x² + 13x + 504.3

• y = 12x² + 13x + 504.3

• y = .12x² + 1.3x + 504.3

Using the quadratic curve of best fit, find the height of the ball when it traveled a distance of 10 feet.

• 12.8 ft

• 13.3 ft

• 11.1 ft

• 17 ft

What would the equation be that best fits this data?:

{(-15, 53.5), (-14, 28), (-3, 18), (0, 4), (6, 27), (14, 50)}

• y = .17x²+.45x+12.43

• y = .16x²+.45x+12.42

• y = -.04x + 30

• y = -.03x + 30

What would the equation be that best fits this data?:

{(-15, 53.5), (-14, 28), (-3, 18), (0, 4), (6, 27), (14, 50)}

• y = .17x²+.45x+12.43

• y = .16x²+.45x+12.42

• y = -.04x + 30

• y = -.03x + 30

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.HSF.BF.A.2

Find the line of best fit

• y = 0.20x + 26

• y = 26x + 0.20

• y = 25x + 28

• y = 28x + 25

Identify the slope of the following graph.

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.8.EE.B.5

Identify the slope of the following graph.

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.8.EE.B.5

Convert the standard form equation into slope-intercept form.
x + 5y = -25

• y = -⅕x - 5
• y = -x - 5
• x = 20
• y = 27, 239, 430

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Identify the slope of the following graph.

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.8.EE.B.5