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Line of Best Fit

Total questions: 19

Worksheet time: 1hrs 18mins

Name
Class
Date
1.

What is the equation of the line of best fit?

a)

y= −12x + 6-\frac{1}{2}x\ +\ 6

b)

y= 12x +6\frac{1}{2}x\ +6

c)

y= 6x + 2

d)

y = -2x +6

2.

What is the y-intercept, use it to pick the correct linear equation:

a)

y = - 0.007x + 14

b)

y = - 0.007x + 34

c)

y = - 0.007x + 1500

d)

y = - 0.007x + 4100

3.

What is the association? Think slope!

a)

Positive

b)

Negative

c)

None

4.

 Identify the slope and use it to identify the equation of the line.

a)
y = -1/4x + 2
b)
y = 1/4x + 2
c)
y = -4x + 2
d)

y = 4x + 2

5.

What is the slope? Use it to write the correct linear equation.

a)

y = -5.0x + 180

b)

y = 5.0x + 180

c)

y = -0.5 x + 180

d)

y = 0.5x + 180

6.

What is the linear equation for the line of best fit?

a)

y = 0.5x + 5.3

b)

y = -0.5x + 5.3

c)

y = -5.3x + 0.5

d)

y = 5.3x + 0.5

7.

What is the equation of the line of best fit

a)

y= -2x + 10

b)

y= 10x+ 2

c)

y=2x+10

d)

y= 10

8.

What is the equation of the line of best fit?

a)

y= 2x+3

b)

y=3x+2

c)

y= 12x +3\frac{1}{2}x\ +3

d)

y= −12x +3-\frac{1}{2}x\ +3

9.

Find the equation for the line of best fit.

a)

y = -0.75x + 9

b)

y = 0.8x + 9

c)

y = -1.33x + 9

d)

y = -0.85x - 9

10.

Which line is the best fit for the data?

a)
b)
c)
d)
11.

Jalen and Liam drew trend lines for the same data set. Which line seems to be a better fit for the data?

a)

Jalen's Trend Line

b)

Liam's Trend Line

12.

What are the coordinates of the outlier?

a)

(2,1)

b)

(4,3)

c)

(1,2)

d)

There is not an outlier.

13.

What are the coordinates of the outlier?

a)

(9,1)

b)

(0,3)

c)

(1,9)

d)

There is not an outlier.

14.

What is the equation of the line of best fit?

a)

y= 2x+3

b)

y=3x+2

c)

y= 12x +3\frac{1}{2}x\ +3

d)

y= −12x +3-\frac{1}{2}x\ +3

15.

What is the equation of the line of best fit?

a)

y = -25x + 170

b)

y = -5/8x + 170

c)

y = 25x + 170

d)

y = 5/8x + 170

16.
What is the line of best fit?
a)
y = 5/3x + 375
b)
y = 1/3x + 475
c)
y = 5/3x + 3
d)
y = 1/3x + 375
17.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
18.
What represents the x axis?
a)
ABC Company
b)
Hours Worked
c)
Amount Earned in Dollars
d)
Hours in Car
19.

What would be the equation for the line of best fit?

a)

y = 3/4x + 9

b)

y = -1/2x + 9

c)

y = -3/4x - 9

d)

y = -3/4x + 9