Is the underlined verb in the sentence transitive or intransitive? We purchased paper, brushes, and paint at the store. transitive intransitive

Independent variable is something that is changed in a experiment. 

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

Ithink the answer would be a