Equation of Trend Line

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170

• y = 25x + 170

• y = -(5/8) x + 170

• y = (5/8) x + 170

Tags

CCSS.8.EE.B.5

The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served.  What is the equation of the line of best fit?

• y = (5/3) x + 375

• y = (1/3) x + 475

• y = (5/3) x + 475

• y = (1/3) x + 375

The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed.  What is the equation of the line of best fit?

• y = (3/2) x

• y = 30x

• y = 30x + 300

• y = (3/2)x + 300

Tags

CCSS.8.EE.B.5

• y= 8/7x+1
• y= 7/8x+1
• y= -7/8 +1
• y= -8/7+1

Tags

CCSS.8.EE.B.5

• y= -5/8x+6
• y= 5/8x+6
• y=-8/5x+6
• y= 8/5x+6

Tags

CCSS.8.EE.B.5

If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?

• 0 = -3/4 (9) +9

• y = -3/4 x + 9

• y = -3/4 x - 9

• y = 3/4 + 9

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

• y= 8/1x+6
• y= -1/2x+6
• y= -2x+6
• y= 1/2x+6

Write the equation of the trend line in slope-intercept form.

(a)  

• y= 1/2x+8
• y= -1/2x+8
• y= 1/4x+8
• y= -1/4+8

Tags

CCSS.8.EE.B.5

Write an equation of the trend line in slope-intercept form.