Question

write an equation for the line that passes through (-2,7) and (3,-8)

Answer 1

ok so find the slope
\(\dfrac{-8 - 7}{3-(-2)}=\)

Answer 2

thank you so much

Answer 3

that's not the whole thing

Answer 4

how i do that?

Answer 5

finding the slope

Answer 6

first find the slope
then find y-intercept

Answer 7

okay

Answer 8

so its -15/5?

Answer 9

hello???

Answer 10

y=mx+a is called the slop-intercept form of a line; where m is the slope and a is the y-intercept.

but i will probably do it in a slightly different way. u got the slope already; would u plz simplify it to a single number instead of a fraction?

Answer 11

ok can you plz help me im a senior and i have to flash back to freshmen year

Answer 12

i forgot this stuff

Answer 13

hahahaa okok being a senior is hard enough n freshman yr seems like ancient time right ;)

OK so what the slope simplifies to plz?

Answer 14

yes!!!!!!!!

Answer 15

you understand

Answer 16

so the slope is....

Answer 17

3

Answer 18

-15/5?

Answer 19

missing something there?

Answer 20

oh yeah -3

Answer 21

OK let (x,y) be the variable of ur eqn...since (3,-8) is a point on that eqn,

slope=(y-(-8))/(x-3)

since slope=-3,

(y-(-8))/(x-3)=-3

can u simplify n re-arrange the eqn above? dats ur ans :)

Answer 22

thx!

Answer 23

heheheee thanx 4 da medal!

if u want, plz post ur ans, i will be happy to double-check 4 u :)