Question

Suppose that y is directly proportional to x.
a. Use the given information to find the constant of proportionality k.
b. Then use y=kx to find y for x=6
y=-58 when x=7

Answer 1

y = k * x

When x = 7 then y = - 58


- 58 = k * 7 Divide both sides with 7

- 58 / 7 = k


k = - 58 / 7


y = k * x


when x = 6


y = - 58 * 6 / 7


x = - 348 / 7