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what is the slope of

1.)13x-11y=-12

2.)9x-7y=-7

Sagot :

Lilith
[tex] the \ slope \ intercept \ form \ is : \\ \\ y= mx +b \\ \\1)\\ \\ 13x-11y=-12 \ \ -13x\\ \\-11y=-13x -12 \ \ /:(-11)\\ \\y=\frac{13}{11}x+\frac{12}{11} \\ \\ m=\frac{13}{11}[/tex]


[tex]2.)\\ \\9x-7y=-7 \ \ -9x \\ \\ -7y=-9x-7 \ \ /: (-7) \\ \\ y= \frac{9}{7} +1 \\ \\ m=\frac{9}{7} [/tex]
[tex]Ax+By=C\\\\slope:m=-\frac{A}{B}\\\\\\1)\ 13x-11y=-12\\\\A=13;\ B=-11\\\\m=-\frac{13}{-11}=\frac{13}{11}\\\\\\2)\ 9x-7y=-7\\\\A=9;\ B=-7\\\\slope:m=-\frac{9}{-7}=\frac{9}{7}[/tex]
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