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Mathematics 15 Online
OpenStudy (anonymous):

1

hartnn (hartnn):

slope intercept form : y=mx+c so try and isolate y. y=......

OpenStudy (anonymous):

first find the value of m then y = mx+c

OpenStudy (anonymous):

idk how

OpenStudy (anonymous):

what is m

hartnn (hartnn):

first subtract (3/4)x from both sides.

OpenStudy (anonymous):

m means slope or we can say y\x

OpenStudy (anonymous):

(4/5)y=4-(3/4)x

hartnn (hartnn):

right :) now multiply (5/4) to each term on both sides.

OpenStudy (anonymous):

how did u get 5/4?

OpenStudy (anonymous):

it is done to make y on one side

hartnn (hartnn):

as 4/5 is multiplied by y to isolate y, i multiply by its reciprocal so that (5/4)(4/5) y = 1 y = y

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

u understood or just idk

OpenStudy (anonymous):

y=(5/4)4-(3/4)x idk how to simplify

hartnn (hartnn):

5/4 * 4 = 5 isn't it ?

hartnn (hartnn):

plus u didn't multiply 5/4 to x term

OpenStudy (anonymous):

idk...

OpenStudy (anonymous):

you dont need to simply it more thats answer

OpenStudy (anonymous):

2x

OpenStudy (anonymous):

so y=5 2x ?

hartnn (hartnn):

ok, i'll write steps, see whether u understand: (4/5)y=4-(3/4)x y= 4*(5/4)- (3/4)(5/4)x y= 5 - 15/16 x comparing with y=mx+c m= slope = -15/16 c= y-intercept = 5

OpenStudy (anonymous):

no it should be y=3\4x + 5

hartnn (hartnn):

please check your calculations @uzumakhi

OpenStudy (anonymous):

got it :D

OpenStudy (anonymous):

so now x

OpenStudy (anonymous):

yes i forgot (-) sign thank u

OpenStudy (anonymous):

ok thx guys. It was right hartnn thx ;)

hartnn (hartnn):

welcome :)

OpenStudy (anonymous):

welcome

OpenStudy (anonymous):

Thx @Luzumakhi

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