Page 274 - Algebra 1

SOLUTION Find the ratio of the change in amount of beans to the change in servings.
Hint
Notice that the value
of the rate of change is equal to the slope of the line.
____
change in servings 6 - 4 2
changeinamountof beans = 15-10 = 5
The slope is _5 . 2
b. What does the rate of change mean in this example? SOLUTION Explain how the variables are related in this ratio.
For every 5 ounces of black beans, 2 servings of salsa can be made.
a. Use the graph to find the rate of change. (Ex 1)
16 12 8 4
0
b. Use the table to find the rate of change. (Ex 2)
_
Lesson Practice
1234
Measure
Miles
3
5
7
9
Feet
15,840
26,400
36,960
47,520
Find the slope of each line. c.
d.
(Ex 3)
y
y
x
(Ex 3)
e.
(Ex 4)
f.
(Ex 4)
0
8
4
x
-8
-4
4
8
-4
Find the slope of the horizontal line that passes through the points (5, 3) and (8, 3).
Find the slope of the vertical line that passes through the points (6, 5) and (6, 10).
-8
Lesson 41 259
Drum Kicks