Please help if you answer this correctly I will give you brainliest. Is this a zero slope or an undefined slope? Picture below

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Whats the name of the vertical axis

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?