Answer: B. -4
The slope is definitely negative, so you can cross out A and C. The slope of a line is always y/x. If you look at the point (-1,-1,) look up to point (-2,6.)
Comparing the two points I mentioned above, the y difference is 4 while the x difference is 1. This is also -4/1, meaning that the answer is B.
Other Branches of Earth Science[edit]Geology<span>, </span>oceanography<span>, and </span>meteorology represent a large part of Earth science, while astronomy<span> represents science beyond Earth.</span>
Yes, I believe that's true.
Use the drop-down menus and what you have learned about potassium-argon dating to complete the sentences.
Radioactive dating can be compared to an hourglass, with the
✔ unstable
elements on the top.
Scientists compare
✔ parent and daughter elements
in the rock to determine its age.
Potassium-argon dating is ideal for dating
✔ igneous
and
✔ ancient
rock.