OpenStudy (riot2015):

MEDALS & FANS FOR THESE 3 QUESTIONS!!! 15. Write an equation for the line that is parallel to the given line and passes through the given point. y = 2x + 4; (3, 8) A y = 2x + 2 B y = 2x + 6 C y = –2x + 6 D y = negative1/2x+ 2 16. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. y = –3x + 7 –2x + 6y = 3 parallel perpendicular neither 17. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. y = (-1/4)x + 8 –2x + 8y = 4 parallel perpendicular neither

2 years ago
OpenStudy (neonumbrella5115):

15. When a line is parallel to another line they have the same slope. 16. Try to write the second equation in y=mx+b format, then you can compare the slopes. 17.Try to write the second equation in y=mx+b format, then you can compare the slopes.

2 years ago
OpenStudy (neonumbrella5115):

After you have done ^^, then post what you got and we'll continue working.

2 years ago
OpenStudy (riot2015):

is 15. b? 16.a? and 17.a?

2 years ago
OpenStudy (riot2015):

or is 17 c

2 years ago
OpenStudy (neonumbrella5115):

15. Try plugging the coordinate into the first to equations, since they have the same slope as the first one. The one where it works is the correct answer. 16. No, when a line is parallel the m's are equal, when a line is perpendicular the second equation will have the opposite reciprocal of the first m value. 17. Neither is the correct choice, because the slopes are not the opposite reciprocal or equal.

2 years ago