Now, make one final coaster that has the works! include each of the following: a "swoop" down through the  x-axis at  x  = 300. (this should follow an initial rise of the track.)a simple crossing upward through the  x-axis at  x  = 700.a smooth ending at  x  = 1000 using an exponent of 2.

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )