25-10-2016
Mathematics

contestada

What is the equation of a line that is perpendicular to -X+3y=9 and passes through the point (-3,2)

Respuesta :

apologiabiology apologiabiology

25-10-2016

perpendicular has slope that mutiplies to -1 to the other slope

for
ax+by=c
slope=-a/b

-1x+3y=9
-(-1)/3=1/3

1/3 times what=-1?
-3

y=mx+b
m=slope
y=-3x+b
find b

(-3,2)
(x,y)
x=-3
y=2

2=-3(-3)+b
2=9+b
mnus 9
-7=b

equaton is
y=-3x-7 or
3x+y=-7

Answer Link

Otras preguntas

The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely

Why do some investigations require a control?

The sum of 2a and 3b

inez waters her plants every two days she trim them every 15 days she did both today when will she do both again

how do you round 9.92,3.99,2.14,8.39,2.79,8.48,2.96,5.34,and 4.52 to the nearest tenth.

what was william harveys middle name

if an organism can not reproduce,is it still considered living?why?

A group of 18 people ordered soup and sandwiches for lunch. Each person in the group had either one soup or one sandwich. The sandwiches cost $7.75 each and the

Why do some investigations require a control?

Approximate the cube root. Round to the nearest tenth.