makayla6969
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  • 10-10-2021
  • Mathematics
contestada

if y varies directly as x, and y= 14 when x = 5, what is y when x = -5

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Аноним Аноним
  • 10-10-2021

Answer:

-14

Step-by-step explanation:

y / x gives us the rate of change which in this case is 2.8 (14/5 = 2.8) we can then multiply -5 by 2.8 which gives us -14

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Аноним Аноним
  • 14-10-2021

[tex]\\ \sf\longmapsto x\propto y[/tex]

[tex]\\ \sf\longmapsto x_1y_2=x_2y_1[/tex]

[tex]\\ \sf\longmapsto 5(14)=-5y_2[/tex]

[tex]\\ \sf\longmapsto 70=-5y_2[/tex]

[tex]\\ \sf\longmapsto y_2=\dfrac{70}{-5}[/tex]

[tex]\\ \sf\longmapsto y_2=-14[/tex]

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