Question

Write an appropriate direct variation equation if y = 8 when x = 4

Answer 1

y = k*x

8 = k*4 ... plugin x = 4 and y = 8

solve for k

Answer 2

i dont understand it. but heres the multiple choice
A. y = 2x
B. y = 32x
C. y = -2x
D. y = -32x

Answer 3

@jim_thompson5910

Answer 4

if 8 = k*4

then what is k?

Answer 5

2?

Answer 6

so y = k*x turns into y = 2x

Answer 7

and that's your equation