anonymous
  • anonymous
please help (4,-6); m= 3/5
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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amilapsn
  • amilapsn
Do you want the equation of the straight line?
anonymous
  • anonymous
anonymous
  • anonymous
thats the possable out comes.

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More answers

amilapsn
  • amilapsn
\(m\) is the gradient of the line, right? How do you find the gradient of a straight line?
anonymous
  • anonymous
idk
triciaal
  • triciaal
use the same formula for the other question the gradient is the same as the slope
anonymous
  • anonymous
its D?
amilapsn
  • amilapsn
\(\Huge m={\frac{\text{y difference}}{\text{x difference}}}\)
anonymous
  • anonymous
ya
amilapsn
  • amilapsn
nope...
amilapsn
  • amilapsn
so, \(\Huge m=\frac{y-(-6)}{x-4}\) ok?
anonymous
  • anonymous
ok
amilapsn
  • amilapsn
So what's the answer?
anonymous
  • anonymous
-4?
amilapsn
  • amilapsn
I mean what's the option?
anonymous
  • anonymous
Oh A
amilapsn
  • amilapsn
\[\Huge \cal Bingo!\]
anonymous
  • anonymous
lol can you help on one more?
amilapsn
  • amilapsn
Yes sure.
anonymous
  • anonymous
amilapsn
  • amilapsn
What is the slope of the graph?
anonymous
  • anonymous
how do i find that?
amilapsn
  • amilapsn
take two points of the graph and plugin the values to \[\Huge m={\frac{\text{y difference}}{\text{x difference}}}\]
anonymous
  • anonymous
the 2 points are 10 and - 10 right??
amilapsn
  • amilapsn
Not quite. If you choose a point then that point has two coordinates: (x,y) right?
anonymous
  • anonymous
ya
amilapsn
  • amilapsn
So?
anonymous
  • anonymous
thats 10 and -10 thats the x,y
anonymous
  • anonymous
10 and -2?
amilapsn
  • amilapsn
It's one point. To calculate slope you've to choose two points:|dw:1439913690096:dw| Let's take point A and B. Can you tell me what's the coordinates of point A?
anonymous
  • anonymous
4,-8?
amilapsn
  • amilapsn
nope. The coordinates of point A is (-8,6).. make sure to use brackets when writing coordinates. :) Can you try the coordinates of point B?
anonymous
  • anonymous
-6,4
amilapsn
  • amilapsn
when you telling coordinates first you have to tell x coordinate. then you've to tell y coordinates.
anonymous
  • anonymous
so 4,-6?
amilapsn
  • amilapsn
you got that. So what would be the slope of the graph?
anonymous
  • anonymous
i dont know
anonymous
  • anonymous
i think i got it is it C?
amilapsn
  • amilapsn
Let's put the equation of the slope this way: \[\huge m=\frac {y_A-y_B}{x_A-x_B}\] Can you plugin the values?
anonymous
  • anonymous
is it C?
anonymous
  • anonymous
HELLO?!
amilapsn
  • amilapsn
yep.... Do you need more explanation?
anonymous
  • anonymous
no

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