−7∘C denotes a temperature of 7∘C below 0∘C, what does 5∘C mean?

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

Identify the graph of y = ln x + 1.