Suppose y varies directly with x and y=4 when x=-2

Question

asked Jul 24, 2022 182k views

2 Answers

N Sharma · Answer 1 · 2022-07-25T17:37:59+0000

Answer:

y = -2x

Explanation:

The appropriate "direct variation" rule (formula) is y = kx.

Since y = 4 when x = -2, 4 = k(-2), or k = -2

Then the specific formula relating x and y is y = -2x