The  equation  of the x-axis is y =0.  lines  that are vertical have no  slope(it does not exist, undefined). they have "rise", but no "run". the rise/run formula for  slope  always has a  zerodenominator and is undefined.

Find two rational expressions that have the difference of 2-n/n-4

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius