Question

Figuring out equations for parallel and perpendicular? Ill post the problem below!
Fan + Medal!

Answer 1

4

Answer 2

y=mx +b
as u know this is slope intercept form
when we compare it with the equation of question
that is
y=-5/4 x -5

Answer 3

y=-4/5x=4 i believe if perpendicular

Answer 4

y=-5/4x+4 is parallel

Answer 5

^^+4*

Answer 6

did this help at all?

Answer 7

thats what i said lol

Answer 8

? all you said was "4"

Answer 9

here m is called slope while b is called y intercept

Answer 10

now when we compare these two slope intercept equations we got slope that is m = - 5/4
while the question is saying that u need to an equation of a line which should be perpendicular

Answer 11

so we use the equation of slope for perpendicular
m x m' = -1
since m =-5/4
-5/4 x m' = -1
m' = -1 x -4/5
m'=4/5
so the slope for perpendicular line is m' = 4/5
now the point is given in the question
(x',y')= (-4,4)
now use this formula and get the equation of perpendicular line
y - y' = m' (x -x')
this is the formula
now just put the slope and point in this formula and get the equation

Answer 12

@heythatsness