Which of the following would be useful to show the percentage of total growth in plants exposed to
various pollutants?
circle graph
frequency table
bar graph
line graph

Bar graph would be useful to show the percentage a total growth in Plants exposed to various pollutants.Bar graph will summarize large sets of data in a very simple manner rather than line and table circle graphs.It is an effective way for comparisons and big changes in data over time.Bar graph will clearly understand all the concepts in a visualized manner.

answer: x= -2y

step-by-step explanation:

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.