Evangeline drove 500 km from Windsor to Peterborough 5 h 30 min. She drove part of the way to steady speed of 100 km/h and the rest of the way at 80 km/h. How far did she travel at each speed?

b) well because you get well

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.