Question

@ganeshie8

Answer 1

Determine the equation of a line, in slope-intercept form, that passes through the points (9,-2) and (12,0). please explain

Answer 2

start by findidng the slope

Answer 3

you're given two points : ` (9,-2) and (12,0)`

can you find the slope ?

Answer 4

okk

Answer 5

2/3

Answer 6

Excellent !
do you know the slope intercept form of line ?

Answer 7

no...

Answer 8

how do i do that

Answer 9

hello @ganeshie8

Answer 10

????????????

Answer 11

@phi

Answer 12

sorry was away,

slope intercept form of line :
`y = mx + b`*

Answer 13

plugin the slope, yout get :

\(\huge y = \frac{2}{3}x + b \)

Answer 14

you need to find \(\large b\)

Answer 15

plugin any of the given points to find b

Answer 16

maybe plugin this point : (12,0)
x = 12, y = 0


\(\large y = \frac{2}{3}x + b\)

\(\large 0 = \frac{2}{3}*12 + b\)

\(\large b = ?\)

Answer 17

8

Answer 18

please dont go away, i need help asap

Answer 19

annnd, you went away lol

Answer 20

2/ 3 * 12 is 2*12/3

I would divide the 3 into the 12 to get 4
2*4= 8
so
0 = 8 + b
to find b, add -8 to both sides

Answer 21

so b is -8

Answer 22

yes, now you can write the whole equation

Answer 23

so my answer is just y=2/3-8?

Answer 24

if you put in the x

Answer 25

sorry is meant y=2/3x-8?

Answer 26

but thats it?

Answer 27

y = (2 /3)x -8

we know (9,-2) is on the line. Let's see if it works
x=9 in the equation gives
y = 2*9/3 - 8
y = 2*3 - 8
y = 6-8
y= -2
which matches with (9,-2)

Answer 28

yes, slope-intercept form is
y = mx + b
with m and b "filled in" with numbers.