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Mathematics 12 Online
Nicole:

http://prntscr.com/kwtwky

Nicole:

@dude

jhonyy9:

howmany is the different between 70 and 35 or between 105 and 70 ?

Nicole:

35

Nicole:

so A

jhonyy9:

yes sure is A

jhonyy9:

bc. daily get 35 35+35=70+35=105 and so much

jhonyy9:

ok. ?

Nicole:

yes

Nicole:

http://prntscr.com/kwtxsg

jhonyy9:

how you get from these x values these y values using these choices ?

jhonyy9:

how you make from 4 this -2 or from 8 this -4 or from 12 this -6 this is easy

Nicole:

so -2?

jhonyy9:

why ? 4 -2 = -2 ? no equal 2

jhonyy9:

4*(-1/2) = ? or 8*(-1/2) = ?

Nicole:

-4

jhonyy9:

and the first one ?

jhonyy9:

what mean y varies directly as x ?

Nicole:

-2

Nicole:

is the first one

jhonyy9:

please answer my above question

Nicole:

what do you mean

jhonyy9:

what mean y varies directly as x ?

jhonyy9:

so this mean that x time one constant = y what will be from these choices the necessary constant from there ?

Nicole:

im not quite sure tbh

jhonyy9:

4 time what constant will result -2 or 8 time what constant will result -4 ?

jhonyy9:

please check them step by step 4*(-2)=-2 ?

Nicole:

No -8

jhonyy9:

yes so the next choice 4*(-1/2) = -2 ?

jhonyy9:

@Nicole are you here ?

Nicole:

yes

Nicole:

yes it equals -2

jhonyy9:

exactly or 8*(-1/2) = -4 ?

jhonyy9:

or 12*(-1/2) = -6 ?

jhonyy9:

@Nicole so what will be the right constant from there ?

Nicole:

how do u find the constant?

jhonyy9:

i ve wrote above to you when y varies directly as x this mean that x time a constant result this y values

Nicole:

isnt that going to be a half?

jhonyy9:

a half but with minus sign

Nicole:

yes so B

jhonyy9:

exactly - do you understand it now ?

Nicole:

yes

Nicole:

http://prntscr.com/kwu448

jhonyy9:

ok great - so was my pleasure and anytime

Nicole:

how about this http://prntscr.com/kwu448

jhonyy9:

do you know what mean the point-slop form of an equation ?

jhonyy9:

https://www.mathsisfun.com/algebra/line-equation-point-slope.html check it here please

Nicole:

I think its A

Nicole:

correct>

jhonyy9:

yes i think the same

Nicole:

http://prntscr.com/kwu66q

jhonyy9:

ok. bye bye Nicole was my pleasure

Nicole:

okay bye

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