It depends on student brain capability to understand the teacher, atleast 2 times is enough for a Brilliant student and an average student would take atmost 5 while the dull ones it would have to repeated until he or she gets it
1 y=mx+b m=slope therefore slope =1
The answer is the last one, the expression is already in the simplest form.
The number + 10 can be used to indicate a :
10 degree rise in temperature.
Temperature can be measured in Kelvin , Celsius, and Fahrenheit. In all measurement, + number indicate a rise in the temperature
