What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 2 x + y - 1 = 0?

2x - y - 4 = 0
2x + y - 4 = 0
2x + y + 4 = 0

When only separate discreet points are graphed it is called?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?