Asap
data regarding fuel efficiency of an 18-wheel truck were collected. the graph shows the correlation between the average speed above 40 miles per hour (in miles per hour) and the money spent on gas (in dollars):
image of a scatter plot with average speed on the x axis and money spent on fuel on the y axis with points 1 comma 2, 3 comma 2 and one half, 5 comma 5, 7 comma 7, 9 comma 10, 11 comma 15, and 12 comma 17
estimate the average rate of change from x = 5 to x = 9.
a.4
b−4
c. 0.8
d. 1.25

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.