Question

Could somebody help please?
I will medal!



I just need the odd numbers.
(will post pic)

Answer 1

for 9 if x=k*y then x/y=k. so you can check if k is the same for each pair of numbers

Answer 2

what about the other ones?

Answer 3

y=kx

So for problem 13, you are given y = 2/3 and x=0.2

So plug them into your equation and solve for k.

2/3=k*0.2

Write .02 as a fraction.

0.2= 2/10

So now you have 2/3 = k(2/10)

Solve for k by multiplying both sides by 10/2

10/2 * 2/3 = k

20/6 = k

Leave k as an improper fraction.

Now you are asked to find the value of y when x = -0.3

Change x to a fraction

-0.3 = -3/10

Solve for y with the value of k (20/6) just calculated.

y = 20/6 * -3/10
y = -60/60
y = -1