Which equation is the direct variation equation if f(x) varies directly with x and f(x)=-2 when x=6

question 3 options:

f (x)=- 2 x

f (x )=-1 /2 x

f (x )=-6 x

f (x )= -18 x

Step-by-step explanation

Given f is a direct variation equation (Direct variation is when one variable is equal to a constant times another variable, with no additions or subtractions alongside).

Now by the above condition let the constant be "c".Then

also given that when

on substituting the above values,

Therefore our equation is

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.