Write the equation of a line that is:

Perpendicular to y=3/2x and whose y intercept is 5

parallel to y=2x+7 and which passes through (-2,5)

Question

Write the equation of a line that is:

Perpendicular to y=3/2x and whose y intercept is 5

parallel to y=2x+7 and which passes through (-2,5)

superfly123 · Answer

For the first one i got y=-2/3x+5
The second one: y=2x+9

jigglypuff314 · Answer

Perfect! :)

superfly123 · Answer

But, the last equation when i plug in two points it doesn't make sense

superfly123 · Answer

it doesnt match up with 2x + 7

jigglypuff314 · Answer

if you plug in 5 for y and -2 for x into your answer equation
5 = 2(-2) + 9
5 = -4 + 9
5 = 5   --> true

so it works ^_^

jigglypuff314 · Answer

they don't care about the  2x+7 one, that was just there for you to get the slope :)

superfly123 · Answer

Oh, so not necessarily they need to match up with the original one

jigglypuff314 · Answer

mhmm ^_^

superfly123 · Answer

Thanks