The graph shows the function f(x). Which value is closest to the average rate of change from x = 1 to x = 3?

−3.5 - I know that this is the answer
​​ −2.3 -
​​−2.3
​​ −1.8
​​ −0.3 -

i know that the answer is -3.5 but i need someone to explain the steps please

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )