dangerousdyno dangerousdyno

23-01-2022
Mathematics

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The variable x and y vary directly. Write an equation that relates x and y. Then find y when x = 12.

x = 4, y = 8

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semsee45 semsee45

23-01-2022

Answer:

24

Step-by-step explanation:

[tex]y=kx[/tex]

at (4, 8): 8 = 4k ⇒ k = 2

So [tex]y=2x[/tex]

when [tex]x=12[/tex], [tex]y=2 \times 12=24[/tex]

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