4A. The table shows the price of a video game for different years
since the game was released. During which time interval did the
price decrease at the greatest rate?
4B. This table shows the U.S. federal minimum hourly wage in
different years. During which time interval did the wage increase
at the greatest rate?
5A. The slope of this line is ________.
5B. Find the slope of this line.
6A. Find the slope of the line that contains the points (6, 8) and
(2, 1).
Write the equation of the line in point-slope form.
6B. Find the slope of the line that contains the points (1, -1) and
(-2, 8).
Write the equation of the line in point-slope form.
5. The table shows the distance traveled by a car during a
5-hour road trip.
Time (h)
0
Distance (mi) 0
1
40
2
80
3
80
4
110
5
160
distance (mi)
a) Graph the data and show the rates of change.
b) During which hour was the car' s average speed the greatest?
160
120
80
40
Dh
1 2 3 4 5h
time (h)
9. Find the slope of the line.
y
8
6
4
2
–8
–6
–4
–2
2
–4
–8
6
(5, –3)
–2
–6
4
(2, –5)
8
x
10. Find the slope of the line.
y
10
8
6
(–4, 3)4
(6, 3)
2
–10 –8
–6
–4
–2
–2
–4
–6
–8
–10
2
4
6
8
10
x
11. Tell whether the slope of the line is positive, negative,
zero, or undefined.
y
5
4
3
2
1
–5
–4
–3
–2
–1
–1
–2
–3
–4
–5
1
2
3
4
5
x
12. Find the slope of the line described by x – 3y = –6.