3.1 Independent Practice - 8th Grade

A Yes, each ratio is equivalent, so the relationship is proportional.

B No, the ratios are not equivalent, so the relationship is not proportional.

A The line would start at (0,32) and slant upward to the right.

B The line would be a straight line that starts at the origin.

A It is not proportional because he deposits the same abount each week.

B It is not porportional because he has $100 in his account to start with.

A He could start without any money in his account and then deposit $20 each week.

B It was porportional to start with.

A 18

B 105

A 18

B 105