1. suppose y varies directly with x, and y = 14 when x = –4. what is the value of y when x = –6?
–21
10
18
21
2. suppose y varies directly with x, and y = 25 when x = 140. what is the value of x when y = 36?
140
165
201.6
176
3. the point (12, 9) is included in a direct variation. what is the constant of variation?
one half
three fourths
1
2