madisonannex madisonannex
  • 24-10-2018
  • Mathematics
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[ Please help! ] Choose the equation that represents the graph below.



y = -2x - 6

y = 2/3x + 6

y = -2/3x + 6

y = 2x + 6

Please help Choose the equation that represents the graph below y 2x 6 y 23x 6 y 23x 6 y 2x 6 class=

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frika
frika frika
  • 24-10-2018

The line crosses the x -axis at point (9,0) and the y-axis at point (0,6).

If the equation of the line is [tex]y=kx+b,[/tex] then substitute the coordinates of the points into this equation:

1) [tex]0=9k+b;[/tex]

2) [tex]6=b.[/tex]

Substitute the second equation into the first:

[tex]9k+6=0,\\ \\k=-\dfrac{2}{3}.[/tex]

The equation of the line is

[tex]y=-\dfrac{2}{3}x+6.[/tex]

Answer: option C


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