Which function translates each point on the graph of y=mx+b so that the slope of the segment from the original point to the translated point is 43?

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Ineed in figuring out this problem.