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PLS HELP! WILL GIVE BRAINLIST!

find an equation of direction variation, given that y varies directly with x and y is 13 when x is 4

A. y = 3x
B. y = 48x
C. y = 12x
D. y = 4x

Respuesta :

Answer:

y = 3x

Step-by-step explanation:

y = 13

x= 4

here

y∝x

that is

y= k x where k is constant

Since the equation is in the form[tex]y=kx[/tex] we know that

[tex]13=K×4[/tex]

[tex]k=13/4=3.25[/tex]

so we can write this

y = 3.23 x ≅ 3x

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