Question

Write an equation of a line that passes through (-3, 4) with slope -.
@amistre64

Answer 1

what formula of a line equation implements a slope and a point?

Answer 2

y-y1= m (x-x1)

Answer 3

then all we need to do is plug in the values ...

Answer 4

what do we end up with? and you have not posted a readable m value yet

Answer 5

-1/2

Answer 6

is the slope

Answer 7

ok, then i can verify your results

Answer 8

y-4= -1/2 (x+3)

Answer 9

yep, looks good. that is an equation of a line.

Answer 10

if need be we can rewrite it as y=(stuff)

distribute and add thru the 4

Answer 11

but the question doesnt imply what form is required for a solution.

Answer 12

y=

Answer 13

so How would I find the y intercept

Answer 14

the y axis, is also the x=0 axis ... so the intercept when x=0 is found when we let x=0

Answer 15

y-4= -1/2 (x+3)

y-4= -1/2 (0+3)

y-4= -3/2

what is our y value?

Answer 16

2.5

Answer 17

so y=-1/2x +2.5

Answer 18

the other method which i suggested works just the same ...

y-4= -1/2 (x+3)

y-4= -x/2 -3/2

y= -x/2 -3/2 +4

unless you require decimals, i would keep it all in ratioed numbers

y int = 5/2

Answer 19

not that it matters, its just a visual thing that some teachers adhere to.

Answer 20

I got it thank you

Answer 21

:) youre welcome