Two lines in the coordinate plane have opposite slopes, are parallel, and the sum of their y-intercepts is 10. if one line passes through (5,4), what are the equations of the lines?

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

answer: i could not see part the question so ill explain how to get the answer

step-by-step explanation: for instance the distance she travele d is 10 and she traveled the same amout each mile so do 10 divided by how many miles she drove each time and you ge your answer.