Line of Best Fit Practice
1. The following table has height
in inches and weight
Height
Weight
10
15
12
20
14
24
15
24
15
17
18
19
28
32
31
33
Label the x axis for height (go by 2’s) and
Y axis (go by 5’s) for weight. Plot points –
Draw line of best fit
Equation _______________________________________
Estimate the weight when the height is 25.
2. Tree Age and Height (in feet)
x
1
1
2
3
3
y
2
3
4
6
8
4
5
6
6
8
10
Label the x axis for age and y axis for
height. Plot points. Draw line of best fit.
Equation
__________________________
Estimate the height when the age is 8 years
3. Time and distance walked
x
y
0
0
1
2
2
3
2.5
4
3
6
3
5
7
5
7
9
Plot points – Draw line of best fit.
Equation
______________________
Estimate the time when the distance is 15
4. Miles Driven – Gas in Tank
Miles
0
Gallons
15
20
35
40
45
55
70
13
12
11
10
8
6
80
3
Plot points (x axis miles driven – go by
10), y axis gallons (go by 3). Draw line of
best fit.
Equation
_____________________
After how many miles will you run out of gas?
5. Money in checking account
Day
0
1
3
4
5
7
8
9
Money
300
280
260
200
170
150
120
100
Plot points (x axis days – y axis Money in
bank account (go by 50)). Draw line of
best fit.
Equation
____________________________
After how many days will you run out of money?
6. Years of College and Income (in thousands)
Years
0
1
3
5
6
7
8
10
Income
20
24
30
40
60
80
90
95
Plot points – x axis years and y axis
income (go by 10’s). Draw line of best fit.
Equation
_________________________
About how much will you make after you have worked for 15 years?