1. suppose y varies directly with x, and y = 14 when x = –4. what is the value of y when x = –6?
a.) –21
b.) 10
c.) 18
d.) 21

2. suppose y varies directly with x, and y = 25 when x = 140. what is the value of x when y = 36?
a.)140
b.)165
c.)201.6
d.)176

3. the point (12, 9) is included in a direct variation. what is the constant of variation?
a.)one half
b.)three fourths
c.)1
d.)2