aramsdell91801
contestada

A direct variation function contains the points (-9, -3) and (-12, -4) Which equation represents the function?
E of
y=-x
o y =
O y=3x
and retur
Save and Exit
Save and Exit
Next
Next
Submit
Submit

Respuesta :

Answer:

y = [tex]\frac{1}{3}[/tex] x

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use either of the 2 given points

Using (- 9, - 3), then

k = [tex]\frac{y}{x}[/tex] = [tex]\frac{-3}{-9}[/tex] = [tex]\frac{1}{3}[/tex]

y = [tex]\frac{1}{3}[/tex] x ← equation of function

Otras preguntas