Help me please my teacher hasn’t taught us anything like this

What is the smallest integer n such that n\sqrt{2} is greater than 20

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

The graph of a line gets what as the value of the slope gets bigger