24. Given two lines with the equations 4y = 5x − 2 and 10y = 5 − 8x, which of the
following is true?

Question

24. Given two lines with the equations 4y = 5x − 2 and 10y = 5 − 8x, which of the
following is true?

anonymous · Answer

a. The lines have the same y-intercept
b. The lines are parallel
c. The lines have the same x-intercept
d. The lines are perpendicular
e. The first line is parallel to the x-axis

anonymous · Answer

solve for y in both equations to get them in this form:  $\large y=mx+b $... 
now you can compare their slopes and y-intercepts

anonymous · Answer

thank u!

anonymous · Answer

i know the answer is the lines are perpendicular,im just a little lost at how you solve the prob and arrive at this solution.

anonymous · Answer

lines are perpendicular when their slopes are negative reciprocal of each other.

y = mx + b
m = slope
b = y-intercept

put them in this form and you should be able to compare easily