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

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: