explaine whether a triangle measures of 42 and 63 would be similiar to a triangle with angle measures of 63 and 75

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

Pls! does anybody know a shortcut for answering these types of questions in the future?

Which equation matches the graph shown ?