Mathematics
12 Online
Nicole:
http://prntscr.com/kwtwky
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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
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jhonyy9:
bc. daily get 35
35+35=70+35=105 and so much
jhonyy9:
ok. ?
Nicole:
yes
jhonyy9:
how you get from these x values these y values using these choices ?
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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
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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
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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
?
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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
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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?
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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 ?
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Nicole:
yes
jhonyy9:
ok great - so was my pleasure and anytime
jhonyy9:
do you know what mean the point-slop form of an equation ?
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Nicole:
I think its A
Nicole:
correct>
jhonyy9:
yes i think the same
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jhonyy9:
ok. bye bye Nicole
was my pleasure
Nicole:
okay bye